Finding the Fourth Proportional to 3,871.40, 5,810.34 and 2,951.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.40 : 5,810.34 = 2,951.24 : x
2. Step 2: Convert to fraction form
   3,871.40/5,810.34 = 2,951.24/x
3. Step 3: Cross multiply
   3,871.40x = 5,810.34 × 2,951.24
4. Step 4: Simplify right side
   3,871.40x = 17,147,707.82
5. Step 5: Solve for x
   x = 17,147,707.82/3,871.40
6. Step 6: Final answer
   x = 4,429.33