Finding the Fourth Proportional to 2,714.94, 4,072.76 and 767.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,714.94 : 4,072.76 = 767.15 : x
2. Step 2: Convert to fraction form
   2,714.94/4,072.76 = 767.15/x
3. Step 3: Cross multiply
   2,714.94x = 4,072.76 × 767.15
4. Step 4: Simplify right side
   2,714.94x = 3,124,411.78
5. Step 5: Solve for x
   x = 3,124,411.78/2,714.94
6. Step 6: Final answer
   x = 1,150.82