Finding the Fourth Proportional to 3,949.39, 5,449.17 and 2,271.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949.39 : 5,449.17 = 2,271.27 : x
2. Step 2: Convert to fraction form
   3,949.39/5,449.17 = 2,271.27/x
3. Step 3: Cross multiply
   3,949.39x = 5,449.17 × 2,271.27
4. Step 4: Simplify right side
   3,949.39x = 12,376,565.30
5. Step 5: Solve for x
   x = 12,376,565.30/3,949.39
6. Step 6: Final answer
   x = 3,133.79