Finding the Fourth Proportional to 3,940.56, 5,437.98 and 2,448.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940.56 : 5,437.98 = 2,448.48 : x
2. Step 2: Convert to fraction form
   3,940.56/5,437.98 = 2,448.48/x
3. Step 3: Cross multiply
   3,940.56x = 5,437.98 × 2,448.48
4. Step 4: Simplify right side
   3,940.56x = 13,314,785.27
5. Step 5: Solve for x
   x = 13,314,785.27/3,940.56
6. Step 6: Final answer
   x = 3,378.91