Finding the Fourth Proportional to 1,172,787.36, 1,759,025.52 and 331,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172,787.36 : 1,759,025.52 = 331,404.72 : x
2. Step 2: Convert to fraction form
   1,172,787.36/1,759,025.52 = 331,404.72/x
3. Step 3: Cross multiply
   1,172,787.36x = 1,759,025.52 × 331,404.72
4. Step 4: Simplify right side
   1,172,787.36x = 582,949,359,928.45
5. Step 5: Solve for x
   x = 582,949,359,928.45/1,172,787.36
6. Step 6: Final answer
   x = 497,063.13