Finding the Fourth Proportional to 1,522.09, 2,096.55 and 1,079.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.09 : 2,096.55 = 1,079.20 : x
2. Step 2: Convert to fraction form
   1,522.09/2,096.55 = 1,079.20/x
3. Step 3: Cross multiply
   1,522.09x = 2,096.55 × 1,079.20
4. Step 4: Simplify right side
   1,522.09x = 2,262,596.76
5. Step 5: Solve for x
   x = 2,262,596.76/1,522.09
6. Step 6: Final answer
   x = 1,486.51