Finding the Fourth Proportional to 782,409.83, 1,172,091.94 and 576,870.10

Step by Step Solution

1. Step 1: Write the proportion equation
   782,409.83 : 1,172,091.94 = 576,870.10 : x
2. Step 2: Convert to fraction form
   782,409.83/1,172,091.94 = 576,870.10/x
3. Step 3: Cross multiply
   782,409.83x = 1,172,091.94 × 576,870.10
4. Step 4: Simplify right side
   782,409.83x = 676,144,790,264.59
5. Step 5: Solve for x
   x = 676,144,790,264.59/782,409.83
6. Step 6: Final answer
   x = 864,182.39