Finding the Fourth Proportional to 2,298.11, 3,171.38 and 1,250.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.11 : 3,171.38 = 1,250.15 : x
2. Step 2: Convert to fraction form
   2,298.11/3,171.38 = 1,250.15/x
3. Step 3: Cross multiply
   2,298.11x = 3,171.38 × 1,250.15
4. Step 4: Simplify right side
   2,298.11x = 3,964,678.60
5. Step 5: Solve for x
   x = 3,964,678.60/2,298.11
6. Step 6: Final answer
   x = 1,725.19