Finding the Fourth Proportional to 3,920.83, 5,413.23 and 2,429.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.83 : 5,413.23 = 2,429.62 : x
2. Step 2: Convert to fraction form
   3,920.83/5,413.23 = 2,429.62/x
3. Step 3: Cross multiply
   3,920.83x = 5,413.23 × 2,429.62
4. Step 4: Simplify right side
   3,920.83x = 13,152,078.34
5. Step 5: Solve for x
   x = 13,152,078.34/3,920.83
6. Step 6: Final answer
   x = 3,354.41