Finding the Fourth Proportional to 2,301.78, 3,176.40 and 1,253.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.78 : 3,176.40 = 1,253.82 : x
2. Step 2: Convert to fraction form
   2,301.78/3,176.40 = 1,253.82/x
3. Step 3: Cross multiply
   2,301.78x = 3,176.40 × 1,253.82
4. Step 4: Simplify right side
   2,301.78x = 3,982,633.85
5. Step 5: Solve for x
   x = 3,982,633.85/2,301.78
6. Step 6: Final answer
   x = 1,730.24