Finding the Fourth Proportional to 3,898.62, 5,851.98 and 2,609.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,898.62 : 5,851.98 = 2,609.10 : x
2. Step 2: Convert to fraction form
   3,898.62/5,851.98 = 2,609.10/x
3. Step 3: Cross multiply
   3,898.62x = 5,851.98 × 2,609.10
4. Step 4: Simplify right side
   3,898.62x = 15,268,401.02
5. Step 5: Solve for x
   x = 15,268,401.02/3,898.62
6. Step 6: Final answer
   x = 3,916.36