need to network 4 computers, have 2 wireless routers, can't wire the routers directly, how to network?

Answer 1

If you need to connect all 4 computers to one network, you don't even need the two routers.
Each wireless router comes with 4 outputs and 1 input. If you hook up the 4 computers to the same router you will avoid IP conflicts which happens often specially if the wireless routers are from the same company.
If all the computers have wireless receivers then u can wire the two routers together so they both emit the same network.

Answer 2

you can connect all 4 computers to one router. If the computers are too far away, then what you need is a wireless router and a wireless repeater.