Finding the Fourth Proportional to 1,122,499.62, 1,684,413.73 and 413,025.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122,499.62 : 1,684,413.73 = 413,025.89 : x
2. Step 2: Convert to fraction form
   1,122,499.62/1,684,413.73 = 413,025.89/x
3. Step 3: Cross multiply
   1,122,499.62x = 1,684,413.73 × 413,025.89
4. Step 4: Simplify right side
   1,122,499.62x = 695,706,472,055.68
5. Step 5: Solve for x
   x = 695,706,472,055.68/1,122,499.62
6. Step 6: Final answer
   x = 619,783.26