Finding the Fourth Proportional to 3,915.57, 5,404.01 and 2,522.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.57 : 5,404.01 = 2,522.37 : x
2. Step 2: Convert to fraction form
   3,915.57/5,404.01 = 2,522.37/x
3. Step 3: Cross multiply
   3,915.57x = 5,404.01 × 2,522.37
4. Step 4: Simplify right side
   3,915.57x = 13,630,900.09
5. Step 5: Solve for x
   x = 13,630,900.09/3,915.57
6. Step 6: Final answer
   x = 3,481.20