Finding the Fourth Proportional to 3,949.05, 5,449.47 and 2,456.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.05 : 5,449.47 = 2,456.92 : x
2. Step 2: Convert to fraction form
   3,949.05/5,449.47 = 2,456.92/x
3. Step 3: Cross multiply
   3,949.05x = 5,449.47 × 2,456.92
4. Step 4: Simplify right side
   3,949.05x = 13,388,911.83
5. Step 5: Solve for x
   x = 13,388,911.83/3,949.05
6. Step 6: Final answer
   x = 3,390.41