Finding the Fourth Proportional to 3,688.98, 5,091.86 and 2,413.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,688.98 : 5,091.86 = 2,413.04 : x
2. Step 2: Convert to fraction form
   3,688.98/5,091.86 = 2,413.04/x
3. Step 3: Cross multiply
   3,688.98x = 5,091.86 × 2,413.04
4. Step 4: Simplify right side
   3,688.98x = 12,286,849.79
5. Step 5: Solve for x
   x = 12,286,849.79/3,688.98
6. Step 6: Final answer
   x = 3,330.69