Finding the Fourth Proportional to 1,250.87, 1,724.37 and 876.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.87 : 1,724.37 = 876.72 : x
2. Step 2: Convert to fraction form
   1,250.87/1,724.37 = 876.72/x
3. Step 3: Cross multiply
   1,250.87x = 1,724.37 × 876.72
4. Step 4: Simplify right side
   1,250.87x = 1,511,789.67
5. Step 5: Solve for x
   x = 1,511,789.67/1,250.87
6. Step 6: Final answer
   x = 1,208.59