Finding the Fourth Proportional to 1,152,552.02, 1,590,729.98 and 687,435.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,552.02 : 1,590,729.98 = 687,435.71 : x
2. Step 2: Convert to fraction form
   1,152,552.02/1,590,729.98 = 687,435.71/x
3. Step 3: Cross multiply
   1,152,552.02x = 1,590,729.98 × 687,435.71
4. Step 4: Simplify right side
   1,152,552.02x = 1,093,524,581,828.76
5. Step 5: Solve for x
   x = 1,093,524,581,828.76/1,152,552.02
6. Step 6: Final answer
   x = 948,785.45