We didn't say you couldn't, we said that it will be vary hard if not imposible to find a resistor that will match your calculatios exactly. As a result the frequency will be off very slightly but that deviation will be noticed over time.
Like almost everyone else who's responded, you've made the error of ASS-U-ming what the O.P. wants to do.
Just to remind everyone, here's what they asked:
Anybody here know how to setup the configuration in order to get a 1Hz output from this chip?
Notice they didn't say "with enough precision to keep accurate time", or anything like that. So basically, we have no idea what their exact requirements are.
So to me, the best answers, lacking further information, are those that gave the answer by giving circuits and component values. If you thought that you couldn't answer the question as posed, not knowing what precision was required, then the thing to do would have been to ask the simple question, "what kind of precision do you need?". But nobody asked that, did they?
By the way, the other best answer, rather than point to one of the hundreds of circuit sites out there in Web-land, would have been to post a link to the
555 datasheet, which, surprise! has the answers to all these questions and more.