Finding the Fourth Proportional to 2,389.62, 3,580.03 and 1,522.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.62 : 3,580.03 = 1,522.10 : x
2. Step 2: Convert to fraction form
   2,389.62/3,580.03 = 1,522.10/x
3. Step 3: Cross multiply
   2,389.62x = 3,580.03 × 1,522.10
4. Step 4: Simplify right side
   2,389.62x = 5,449,163.66
5. Step 5: Solve for x
   x = 5,449,163.66/2,389.62
6. Step 6: Final answer
   x = 2,280.35