Finding the Fourth Proportional to 847,111.59, 1,263,194.71 and 729,538.47

Step by Step Solution

1. Step 1: Write the proportion equation
   847,111.59 : 1,263,194.71 = 729,538.47 : x
2. Step 2: Convert to fraction form
   847,111.59/1,263,194.71 = 729,538.47/x
3. Step 3: Cross multiply
   847,111.59x = 1,263,194.71 × 729,538.47
4. Step 4: Simplify right side
   847,111.59x = 921,549,134,221.65
5. Step 5: Solve for x
   x = 921,549,134,221.65/847,111.59
6. Step 6: Final answer
   x = 1,087,872.18