Finding the Fourth Proportional to 2,280.24, 3,413.07 and 1,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.24 : 3,413.07 = 1,620.50 : x
2. Step 2: Convert to fraction form
   2,280.24/3,413.07 = 1,620.50/x
3. Step 3: Cross multiply
   2,280.24x = 3,413.07 × 1,620.50
4. Step 4: Simplify right side
   2,280.24x = 5,530,862.87
5. Step 5: Solve for x
   x = 5,530,862.87/2,280.24
6. Step 6: Final answer
   x = 2,425.56