Finding the Fourth Proportional to 3,943.10, 5,441.24 and 2,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,943.10 : 5,441.24 = 2,174.72 : x
2. Step 2: Convert to fraction form
   3,943.10/5,441.24 = 2,174.72/x
3. Step 3: Cross multiply
   3,943.10x = 5,441.24 × 2,174.72
4. Step 4: Simplify right side
   3,943.10x = 11,833,173.45
5. Step 5: Solve for x
   x = 11,833,173.45/3,943.10
6. Step 6: Final answer
   x = 3,000.98