Finding the Fourth Proportional to 3,944.30, 5,443.16 and 2,175.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.30 : 5,443.16 = 2,175.89 : x
2. Step 2: Convert to fraction form
   3,944.30/5,443.16 = 2,175.89/x
3. Step 3: Cross multiply
   3,944.30x = 5,443.16 × 2,175.89
4. Step 4: Simplify right side
   3,944.30x = 11,843,679.32
5. Step 5: Solve for x
   x = 11,843,679.32/3,944.30
6. Step 6: Final answer
   x = 3,002.74