Finding the Fourth Proportional to 1,150.96, 1,587.96 and 731.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.96 : 1,587.96 = 731.20 : x
2. Step 2: Convert to fraction form
   1,150.96/1,587.96 = 731.20/x
3. Step 3: Cross multiply
   1,150.96x = 1,587.96 × 731.20
4. Step 4: Simplify right side
   1,150.96x = 1,161,116.35
5. Step 5: Solve for x
   x = 1,161,116.35/1,150.96
6. Step 6: Final answer
   x = 1,008.82