Finding the Fourth Proportional to 2,610.79, 3,912.48 and 1,375.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.79 : 3,912.48 = 1,375.69 : x
2. Step 2: Convert to fraction form
   2,610.79/3,912.48 = 1,375.69/x
3. Step 3: Cross multiply
   2,610.79x = 3,912.48 × 1,375.69
4. Step 4: Simplify right side
   2,610.79x = 5,382,359.61
5. Step 5: Solve for x
   x = 5,382,359.61/2,610.79
6. Step 6: Final answer
   x = 2,061.58