Finding the Fourth Proportional to 815,039.52, 1,124,698.12 and 452,434.72

Step by Step Solution

1. Step 1: Write the proportion equation
   815,039.52 : 1,124,698.12 = 452,434.72 : x
2. Step 2: Convert to fraction form
   815,039.52/1,124,698.12 = 452,434.72/x
3. Step 3: Cross multiply
   815,039.52x = 1,124,698.12 × 452,434.72
4. Step 4: Simplify right side
   815,039.52x = 508,852,479,006.73
5. Step 5: Solve for x
   x = 508,852,479,006.73/815,039.52
6. Step 6: Final answer
   x = 624,328.60