Finding the Fourth Proportional to 2,081.63, 2,872.83 and 1,150.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.63 : 2,872.83 = 1,150.31 : x
2. Step 2: Convert to fraction form
   2,081.63/2,872.83 = 1,150.31/x
3. Step 3: Cross multiply
   2,081.63x = 2,872.83 × 1,150.31
4. Step 4: Simplify right side
   2,081.63x = 3,304,645.08
5. Step 5: Solve for x
   x = 3,304,645.08/2,081.63
6. Step 6: Final answer
   x = 1,587.53