Finding the Fourth Proportional to 2,413.98, 3,616.84 and 1,621.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,413.98 : 3,616.84 = 1,621.86 : x
2. Step 2: Convert to fraction form
   2,413.98/3,616.84 = 1,621.86/x
3. Step 3: Cross multiply
   2,413.98x = 3,616.84 × 1,621.86
4. Step 4: Simplify right side
   2,413.98x = 5,866,008.12
5. Step 5: Solve for x
   x = 5,866,008.12/2,413.98
6. Step 6: Final answer
   x = 2,430.02