Finding the Fourth Proportional to 3,944, 5,442.72 and 2,288.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944 : 5,442.72 = 2,288.32 : x
2. Step 2: Convert to fraction form
   3,944/5,442.72 = 2,288.32/x
3. Step 3: Cross multiply
   3,944x = 5,442.72 × 2,288.32
4. Step 4: Simplify right side
   3,944x = 12,454,685.03
5. Step 5: Solve for x
   x = 12,454,685.03/3,944
6. Step 6: Final answer
   x = 3,157.88