Finding the Fourth Proportional to 846,978.77, 1,264,375.70 and 725,730.10

Step by Step Solution

1. Step 1: Write the proportion equation
   846,978.77 : 1,264,375.70 = 725,730.10 : x
2. Step 2: Convert to fraction form
   846,978.77/1,264,375.70 = 725,730.10/x
3. Step 3: Cross multiply
   846,978.77x = 1,264,375.70 × 725,730.10
4. Step 4: Simplify right side
   846,978.77x = 917,595,503,198.57
5. Step 5: Solve for x
   x = 917,595,503,198.57/846,978.77
6. Step 6: Final answer
   x = 1,083,374.86