Finding the Fourth Proportional to 899,413.48, 1,339,095.89 and 886,854.76

Step by Step Solution

1. Step 1: Write the proportion equation
   899,413.48 : 1,339,095.89 = 886,854.76 : x
2. Step 2: Convert to fraction form
   899,413.48/1,339,095.89 = 886,854.76/x
3. Step 3: Cross multiply
   899,413.48x = 1,339,095.89 × 886,854.76
4. Step 4: Simplify right side
   899,413.48x = 1,187,583,564,142.94
5. Step 5: Solve for x
   x = 1,187,583,564,142.94/899,413.48
6. Step 6: Final answer
   x = 1,320,397.78