Finding the Fourth Proportional to 2,298.51, 3,171.87 and 1,250.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.51 : 3,171.87 = 1,250.57 : x
2. Step 2: Convert to fraction form
   2,298.51/3,171.87 = 1,250.57/x
3. Step 3: Cross multiply
   2,298.51x = 3,171.87 × 1,250.57
4. Step 4: Simplify right side
   2,298.51x = 3,966,629.61
5. Step 5: Solve for x
   x = 3,966,629.61/2,298.51
6. Step 6: Final answer
   x = 1,725.74