Finding the Fourth Proportional to 1,062.01, 1,588.76 and 665.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.01 : 1,588.76 = 665.31 : x
2. Step 2: Convert to fraction form
   1,062.01/1,588.76 = 665.31/x
3. Step 3: Cross multiply
   1,062.01x = 1,588.76 × 665.31
4. Step 4: Simplify right side
   1,062.01x = 1,057,026.78
5. Step 5: Solve for x
   x = 1,057,026.78/1,062.01
6. Step 6: Final answer
   x = 995.31