Finding the Fourth Proportional to 2,510.71, 3,768.38 and 1,279

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.71 : 3,768.38 = 1,279 : x
2. Step 2: Convert to fraction form
   2,510.71/3,768.38 = 1,279/x
3. Step 3: Cross multiply
   2,510.71x = 3,768.38 × 1,279
4. Step 4: Simplify right side
   2,510.71x = 4,819,758.02
5. Step 5: Solve for x
   x = 4,819,758.02/2,510.71
6. Step 6: Final answer
   x = 1,919.68