Finding the Fourth Proportional to 2,717.82, 4,076.15 and 770.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.82 : 4,076.15 = 770.04 : x
2. Step 2: Convert to fraction form
   2,717.82/4,076.15 = 770.04/x
3. Step 3: Cross multiply
   2,717.82x = 4,076.15 × 770.04
4. Step 4: Simplify right side
   2,717.82x = 3,138,798.55
5. Step 5: Solve for x
   x = 3,138,798.55/2,717.82
6. Step 6: Final answer
   x = 1,154.90