Finding the Fourth Proportional to 3,906.12, 5,388.58 and 2,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.12 : 5,388.58 = 2,413.50 : x
2. Step 2: Convert to fraction form
   3,906.12/5,388.58 = 2,413.50/x
3. Step 3: Cross multiply
   3,906.12x = 5,388.58 × 2,413.50
4. Step 4: Simplify right side
   3,906.12x = 13,005,298.82
5. Step 5: Solve for x
   x = 13,005,298.82/3,906.12
6. Step 6: Final answer
   x = 3,329.47