Finding the Fourth Proportional to 2,767.36, 4,151.94 and 1,306.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.36 : 4,151.94 = 1,306.72 : x
2. Step 2: Convert to fraction form
   2,767.36/4,151.94 = 1,306.72/x
3. Step 3: Cross multiply
   2,767.36x = 4,151.94 × 1,306.72
4. Step 4: Simplify right side
   2,767.36x = 5,425,423.04
5. Step 5: Solve for x
   x = 5,425,423.04/2,767.36
6. Step 6: Final answer
   x = 1,960.50