Finding the Fourth Proportional to 2,298.66, 3,172.12 and 1,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.66 : 3,172.12 = 1,250.72 : x
2. Step 2: Convert to fraction form
   2,298.66/3,172.12 = 1,250.72/x
3. Step 3: Cross multiply
   2,298.66x = 3,172.12 × 1,250.72
4. Step 4: Simplify right side
   2,298.66x = 3,967,433.93
5. Step 5: Solve for x
   x = 3,967,433.93/2,298.66
6. Step 6: Final answer
   x = 1,725.98