Finding the Fourth Proportional to 865,854.30, 1,194,105.27 and 543,594.42

Step by Step Solution

1. Step 1: Write the proportion equation
   865,854.30 : 1,194,105.27 = 543,594.42 : x
2. Step 2: Convert to fraction form
   865,854.30/1,194,105.27 = 543,594.42/x
3. Step 3: Cross multiply
   865,854.30x = 1,194,105.27 × 543,594.42
4. Step 4: Simplify right side
   865,854.30x = 649,108,961,664.59
5. Step 5: Solve for x
   x = 649,108,961,664.59/865,854.30
6. Step 6: Final answer
   x = 749,674.58