Finding the Fourth Proportional to 3,944.28, 5,443.32 and 2,175.87

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.28 : 5,443.32 = 2,175.87 : x
2. Step 2: Convert to fraction form
   3,944.28/5,443.32 = 2,175.87/x
3. Step 3: Cross multiply
   3,944.28x = 5,443.32 × 2,175.87
4. Step 4: Simplify right side
   3,944.28x = 11,843,956.69
5. Step 5: Solve for x
   x = 11,843,956.69/3,944.28
6. Step 6: Final answer
   x = 3,002.82