Finding the Fourth Proportional to 1,152.52, 1,727.82 and 502.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.52 : 1,727.82 = 502.78 : x
2. Step 2: Convert to fraction form
   1,152.52/1,727.82 = 502.78/x
3. Step 3: Cross multiply
   1,152.52x = 1,727.82 × 502.78
4. Step 4: Simplify right side
   1,152.52x = 868,713.34
5. Step 5: Solve for x
   x = 868,713.34/1,152.52
6. Step 6: Final answer
   x = 753.75