Finding the Fourth Proportional to 3,942.46, 5,442.15 and 2,370.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.46 : 5,442.15 = 2,370.25 : x
2. Step 2: Convert to fraction form
   3,942.46/5,442.15 = 2,370.25/x
3. Step 3: Cross multiply
   3,942.46x = 5,442.15 × 2,370.25
4. Step 4: Simplify right side
   3,942.46x = 12,899,256.04
5. Step 5: Solve for x
   x = 12,899,256.04/3,942.46
6. Step 6: Final answer
   x = 3,271.88