Finding the Fourth Proportional to 1,522.80, 2,092.23 and 1,227.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,522.80 : 2,092.23 = 1,227.15 : x
2. Step 2: Convert to fraction form
   1,522.80/2,092.23 = 1,227.15/x
3. Step 3: Cross multiply
   1,522.80x = 2,092.23 × 1,227.15
4. Step 4: Simplify right side
   1,522.80x = 2,567,480.04
5. Step 5: Solve for x
   x = 2,567,480.04/1,522.80
6. Step 6: Final answer
   x = 1,686.03