Finding the Fourth Proportional to 768,945.47, 1,061,143.92 and 429,413.99

Step by Step Solution

1. Step 1: Write the proportion equation
   768,945.47 : 1,061,143.92 = 429,413.99 : x
2. Step 2: Convert to fraction form
   768,945.47/1,061,143.92 = 429,413.99/x
3. Step 3: Cross multiply
   768,945.47x = 1,061,143.92 × 429,413.99
4. Step 4: Simplify right side
   768,945.47x = 455,670,039,345.72
5. Step 5: Solve for x
   x = 455,670,039,345.72/768,945.47
6. Step 6: Final answer
   x = 592,590.84