Finding the Fourth Proportional to 3,942.24, 5,441.76 and 2,451.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.24 : 5,441.76 = 2,451.60 : x
2. Step 2: Convert to fraction form
   3,942.24/5,441.76 = 2,451.60/x
3. Step 3: Cross multiply
   3,942.24x = 5,441.76 × 2,451.60
4. Step 4: Simplify right side
   3,942.24x = 13,341,018.82
5. Step 5: Solve for x
   x = 13,341,018.82/3,942.24
6. Step 6: Final answer
   x = 3,384.12