Finding the Fourth Proportional to 3,948.32, 5,448.72 and 2,269.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,948.32 : 5,448.72 = 2,269.76 : x
2. Step 2: Convert to fraction form
   3,948.32/5,448.72 = 2,269.76/x
3. Step 3: Cross multiply
   3,948.32x = 5,448.72 × 2,269.76
4. Step 4: Simplify right side
   3,948.32x = 12,367,286.71
5. Step 5: Solve for x
   x = 12,367,286.71/3,948.32
6. Step 6: Final answer
   x = 3,132.29