Finding the Fourth Proportional to 1,989.29, 2,745.72 and 1,150.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989.29 : 2,745.72 = 1,150.49 : x
2. Step 2: Convert to fraction form
   1,989.29/2,745.72 = 1,150.49/x
3. Step 3: Cross multiply
   1,989.29x = 2,745.72 × 1,150.49
4. Step 4: Simplify right side
   1,989.29x = 3,158,909.67
5. Step 5: Solve for x
   x = 3,158,909.67/1,989.29
6. Step 6: Final answer
   x = 1,587.96