Finding the Fourth Proportional to 3,967.55, 5,472.86 and 2,474.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.55 : 5,472.86 = 2,474.31 : x
2. Step 2: Convert to fraction form
   3,967.55/5,472.86 = 2,474.31/x
3. Step 3: Cross multiply
   3,967.55x = 5,472.86 × 2,474.31
4. Step 4: Simplify right side
   3,967.55x = 13,541,539.86
5. Step 5: Solve for x
   x = 13,541,539.86/3,967.55
6. Step 6: Final answer
   x = 3,413.08