Finding the Fourth Proportional to 2,616.27, 3,924.34 and 767.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.27 : 3,924.34 = 767.42 : x
2. Step 2: Convert to fraction form
   2,616.27/3,924.34 = 767.42/x
3. Step 3: Cross multiply
   2,616.27x = 3,924.34 × 767.42
4. Step 4: Simplify right side
   2,616.27x = 3,011,631.17
5. Step 5: Solve for x
   x = 3,011,631.17/2,616.27
6. Step 6: Final answer
   x = 1,151.11