Finding the Fourth Proportional to 1,443.27, 1,989.74 and 1,110.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.27 : 1,989.74 = 1,110.39 : x
2. Step 2: Convert to fraction form
   1,443.27/1,989.74 = 1,110.39/x
3. Step 3: Cross multiply
   1,443.27x = 1,989.74 × 1,110.39
4. Step 4: Simplify right side
   1,443.27x = 2,209,381.85
5. Step 5: Solve for x
   x = 2,209,381.85/1,443.27
6. Step 6: Final answer
   x = 1,530.82