Finding the Fourth Proportional to 1,045,345.94, 1,442,402.53 and 615,711.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045,345.94 : 1,442,402.53 = 615,711.61 : x
2. Step 2: Convert to fraction form
   1,045,345.94/1,442,402.53 = 615,711.61/x
3. Step 3: Cross multiply
   1,045,345.94x = 1,442,402.53 × 615,711.61
4. Step 4: Simplify right side
   1,045,345.94x = 888,103,978,869.09
5. Step 5: Solve for x
   x = 888,103,978,869.09/1,045,345.94
6. Step 6: Final answer
   x = 849,579.02