Finding the Fourth Proportional to 3,401.88, 5,082.15 and 2,159.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.88 : 5,082.15 = 2,159.34 : x
2. Step 2: Convert to fraction form
   3,401.88/5,082.15 = 2,159.34/x
3. Step 3: Cross multiply
   3,401.88x = 5,082.15 × 2,159.34
4. Step 4: Simplify right side
   3,401.88x = 10,974,089.78
5. Step 5: Solve for x
   x = 10,974,089.78/3,401.88
6. Step 6: Final answer
   x = 3,225.89