Finding the Fourth Proportional to 1,151,708.78, 1,727,562.83 and 618,496.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151,708.78 : 1,727,562.83 = 618,496.31 : x
2. Step 2: Convert to fraction form
   1,151,708.78/1,727,562.83 = 618,496.31/x
3. Step 3: Cross multiply
   1,151,708.78x = 1,727,562.83 × 618,496.31
4. Step 4: Simplify right side
   1,151,708.78x = 1,068,491,223,917.86
5. Step 5: Solve for x
   x = 1,068,491,223,917.86/1,151,708.78
6. Step 6: Final answer
   x = 927,744.28