Finding the Fourth Proportional to 1,158.72, 1,737.46 and 500.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.72 : 1,737.46 = 500.59 : x
2. Step 2: Convert to fraction form
   1,158.72/1,737.46 = 500.59/x
3. Step 3: Cross multiply
   1,158.72x = 1,737.46 × 500.59
4. Step 4: Simplify right side
   1,158.72x = 869,755.10
5. Step 5: Solve for x
   x = 869,755.10/1,158.72
6. Step 6: Final answer
   x = 750.62