Finding the Fourth Proportional to 1,097,332.47, 1,646,155.89 and 339,239.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097,332.47 : 1,646,155.89 = 339,239.88 : x
2. Step 2: Convert to fraction form
   1,097,332.47/1,646,155.89 = 339,239.88/x
3. Step 3: Cross multiply
   1,097,332.47x = 1,646,155.89 × 339,239.88
4. Step 4: Simplify right side
   1,097,332.47x = 558,441,726,584.89
5. Step 5: Solve for x
   x = 558,441,726,584.89/1,097,332.47
6. Step 6: Final answer
   x = 508,908.41