Finding the Fourth Proportional to 3,942.99, 5,442.27 and 2,452.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.99 : 5,442.27 = 2,452.05 : x
2. Step 2: Convert to fraction form
   3,942.99/5,442.27 = 2,452.05/x
3. Step 3: Cross multiply
   3,942.99x = 5,442.27 × 2,452.05
4. Step 4: Simplify right side
   3,942.99x = 13,344,718.15
5. Step 5: Solve for x
   x = 13,344,718.15/3,942.99
6. Step 6: Final answer
   x = 3,384.42