Finding the Fourth Proportional to 1,085.30, 1,629.15 and 1,014.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.30 : 1,629.15 = 1,014.80 : x
2. Step 2: Convert to fraction form
   1,085.30/1,629.15 = 1,014.80/x
3. Step 3: Cross multiply
   1,085.30x = 1,629.15 × 1,014.80
4. Step 4: Simplify right side
   1,085.30x = 1,653,261.42
5. Step 5: Solve for x
   x = 1,653,261.42/1,085.30
6. Step 6: Final answer
   x = 1,523.32