Finding the Fourth Proportional to 1,151.67, 1,728.05 and 502.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.67 : 1,728.05 = 502.59 : x
2. Step 2: Convert to fraction form
   1,151.67/1,728.05 = 502.59/x
3. Step 3: Cross multiply
   1,151.67x = 1,728.05 × 502.59
4. Step 4: Simplify right side
   1,151.67x = 868,498.14
5. Step 5: Solve for x
   x = 868,498.14/1,151.67
6. Step 6: Final answer
   x = 754.12