Finding the Fourth Proportional to 1,079,901.72, 1,490,280.12 and 627,192.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,901.72 : 1,490,280.12 = 627,192.72 : x
2. Step 2: Convert to fraction form
   1,079,901.72/1,490,280.12 = 627,192.72/x
3. Step 3: Cross multiply
   1,079,901.72x = 1,490,280.12 × 627,192.72
4. Step 4: Simplify right side
   1,079,901.72x = 934,692,842,024.73
5. Step 5: Solve for x
   x = 934,692,842,024.73/1,079,901.72
6. Step 6: Final answer
   x = 865,535.10