Finding the Fourth Proportional to 1,097,981.52, 1,647,105.12 and 387,864.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,981.52 : 1,647,105.12 = 387,864.24 : x
2. Step 2: Convert to fraction form
   1,097,981.52/1,647,105.12 = 387,864.24/x
3. Step 3: Cross multiply
   1,097,981.52x = 1,647,105.12 × 387,864.24
4. Step 4: Simplify right side
   1,097,981.52x = 638,853,175,568.91
5. Step 5: Solve for x
   x = 638,853,175,568.91/1,097,981.52
6. Step 6: Final answer
   x = 581,843.29