Unfortunately INDIRECT doesn't support iteration over an array.
Fortunately, VLOOKUP does, and also means you don't require the helper column. So:
=ArrayFormula(VLOOKUP(A1:A100,Sheet1!A:D,{2,3,4}*SIGN(ROW(A1:A100)),0))
and in the new version of Sheets, the third argument can be simplified:
=ArrayFormula(VLOOKUP(A1:A100,Sheet1!A:D,{2,3,4},0))