Finding the Fourth Proportional to 1,522.42, 2,098.78 and 1,080.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.42 : 2,098.78 = 1,080.16 : x
2. Step 2: Convert to fraction form
   1,522.42/2,098.78 = 1,080.16/x
3. Step 3: Cross multiply
   1,522.42x = 2,098.78 × 1,080.16
4. Step 4: Simplify right side
   1,522.42x = 2,267,018.20
5. Step 5: Solve for x
   x = 2,267,018.20/1,522.42
6. Step 6: Final answer
   x = 1,489.09