Finding the Fourth Proportional to 1,025,499.49, 1,537,308.82 and 393,937.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025,499.49 : 1,537,308.82 = 393,937.63 : x
2. Step 2: Convert to fraction form
   1,025,499.49/1,537,308.82 = 393,937.63/x
3. Step 3: Cross multiply
   1,025,499.49x = 1,537,308.82 × 393,937.63
4. Step 4: Simplify right side
   1,025,499.49x = 605,603,789,778.05
5. Step 5: Solve for x
   x = 605,603,789,778.05/1,025,499.49
6. Step 6: Final answer
   x = 590,545.19