VLOOKUP alternative using three lookup values

Question

As you know Excel only lets you use one lookup value, but I need to compare three lookup values to find a fourth value.

For example in the screenshot below I want to use

Answer 1

Given the cyclic calulation and disregard for the Worksheet.UsedRange property that the AGGREGATE function exhibits, you will want to cut down the ranges for the lookups to the minimmum required. Pick a column that will typically determine the extent of the lookup range and use that to define the end point of each lookup column.

Sheet2:

        

Sheet1:

        

The formula in Sheet1!E2 is,

        

Fill down as necessary.