Finding the Fourth Proportional to 2,789.57, 4,185.97 and 1,250.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.57 : 4,185.97 = 1,250.57 : x
2. Step 2: Convert to fraction form
   2,789.57/4,185.97 = 1,250.57/x
3. Step 3: Cross multiply
   2,789.57x = 4,185.97 × 1,250.57
4. Step 4: Simplify right side
   2,789.57x = 5,234,827.57
5. Step 5: Solve for x
   x = 5,234,827.57/2,789.57
6. Step 6: Final answer
   x = 1,876.57