Finding the Fourth Proportional to 3,915.90, 5,401.16 and 2,424.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.90 : 5,401.16 = 2,424.53 : x
2. Step 2: Convert to fraction form
   3,915.90/5,401.16 = 2,424.53/x
3. Step 3: Cross multiply
   3,915.90x = 5,401.16 × 2,424.53
4. Step 4: Simplify right side
   3,915.90x = 13,095,235.33
5. Step 5: Solve for x
   x = 13,095,235.33/3,915.90
6. Step 6: Final answer
   x = 3,344.12