Finding the Fourth Proportional to 1,140,510.72, 1,573,766.72 and 657,234.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,510.72 : 1,573,766.72 = 657,234.24 : x
2. Step 2: Convert to fraction form
   1,140,510.72/1,573,766.72 = 657,234.24/x
3. Step 3: Cross multiply
   1,140,510.72x = 1,573,766.72 × 657,234.24
4. Step 4: Simplify right side
   1,140,510.72x = 1,034,333,374,156.49
5. Step 5: Solve for x
   x = 1,034,333,374,156.49/1,140,510.72
6. Step 6: Final answer
   x = 906,903.68