Finding the Fourth Proportional to 1,211,385.10, 1,671,711.59 and 702,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,385.10 : 1,671,711.59 = 702,382.72 : x
2. Step 2: Convert to fraction form
   1,211,385.10/1,671,711.59 = 702,382.72/x
3. Step 3: Cross multiply
   1,211,385.10x = 1,671,711.59 × 702,382.72
4. Step 4: Simplify right side
   1,211,385.10x = 1,174,181,333,639.72
5. Step 5: Solve for x
   x = 1,174,181,333,639.72/1,211,385.10
6. Step 6: Final answer
   x = 969,288.24