Finding the Fourth Proportional to 1,086.56, 1,500.68 and 731.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.56 : 1,500.68 = 731.87 : x
2. Step 2: Convert to fraction form
   1,086.56/1,500.68 = 731.87/x
3. Step 3: Cross multiply
   1,086.56x = 1,500.68 × 731.87
4. Step 4: Simplify right side
   1,086.56x = 1,098,297.00
5. Step 5: Solve for x
   x = 1,098,297.00/1,086.56
6. Step 6: Final answer
   x = 1,010.80