Finding the Fourth Proportional to 3,871.98, 5,340.69 and 2,474.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.98 : 5,340.69 = 2,474.10 : x
2. Step 2: Convert to fraction form
   3,871.98/5,340.69 = 2,474.10/x
3. Step 3: Cross multiply
   3,871.98x = 5,340.69 × 2,474.10
4. Step 4: Simplify right side
   3,871.98x = 13,213,401.13
5. Step 5: Solve for x
   x = 13,213,401.13/3,871.98
6. Step 6: Final answer
   x = 3,412.57