Finding the Fourth Proportional to 1,440.27, 1,989.27 and 1,049.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.27 : 1,989.27 = 1,049.04 : x
2. Step 2: Convert to fraction form
   1,440.27/1,989.27 = 1,049.04/x
3. Step 3: Cross multiply
   1,440.27x = 1,989.27 × 1,049.04
4. Step 4: Simplify right side
   1,440.27x = 2,086,823.80
5. Step 5: Solve for x
   x = 2,086,823.80/1,440.27
6. Step 6: Final answer
   x = 1,448.91