Finding the Fourth Proportional to 1,151.25, 1,588.82 and 731.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.25 : 1,588.82 = 731.55 : x
2. Step 2: Convert to fraction form
   1,151.25/1,588.82 = 731.55/x
3. Step 3: Cross multiply
   1,151.25x = 1,588.82 × 731.55
4. Step 4: Simplify right side
   1,151.25x = 1,162,301.27
5. Step 5: Solve for x
   x = 1,162,301.27/1,151.25
6. Step 6: Final answer
   x = 1,009.60