Finding the Fourth Proportional to 2,301.40, 3,175.90 and 1,253.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.40 : 3,175.90 = 1,253.49 : x
2. Step 2: Convert to fraction form
   2,301.40/3,175.90 = 1,253.49/x
3. Step 3: Cross multiply
   2,301.40x = 3,175.90 × 1,253.49
4. Step 4: Simplify right side
   2,301.40x = 3,980,958.89
5. Step 5: Solve for x
   x = 3,980,958.89/2,301.40
6. Step 6: Final answer
   x = 1,729.80