Finding the Fourth Proportional to 2,413.78, 3,327.05 and 1,616.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,413.78 : 3,327.05 = 1,616.83 : x
2. Step 2: Convert to fraction form
   2,413.78/3,327.05 = 1,616.83/x
3. Step 3: Cross multiply
   2,413.78x = 3,327.05 × 1,616.83
4. Step 4: Simplify right side
   2,413.78x = 5,379,269.98
5. Step 5: Solve for x
   x = 5,379,269.98/2,413.78
6. Step 6: Final answer
   x = 2,228.57