Finding the Fourth Proportional to 2,081.72, 2,872.77 and 1,150.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.72 : 2,872.77 = 1,150.22 : x
2. Step 2: Convert to fraction form
   2,081.72/2,872.77 = 1,150.22/x
3. Step 3: Cross multiply
   2,081.72x = 2,872.77 × 1,150.22
4. Step 4: Simplify right side
   2,081.72x = 3,304,324.69
5. Step 5: Solve for x
   x = 3,304,324.69/2,081.72
6. Step 6: Final answer
   x = 1,587.30