Finding the Fourth Proportional to 2,413.14, 3,617.55 and 1,242.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,413.14 : 3,617.55 = 1,242.50 : x
2. Step 2: Convert to fraction form
   2,413.14/3,617.55 = 1,242.50/x
3. Step 3: Cross multiply
   2,413.14x = 3,617.55 × 1,242.50
4. Step 4: Simplify right side
   2,413.14x = 4,494,787.79
5. Step 5: Solve for x
   x = 4,494,787.79/2,413.14
6. Step 6: Final answer
   x = 1,862.63