Finding the Fourth Proportional to 2,411.56, 3,617.61 and 767.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.56 : 3,617.61 = 767.73 : x
2. Step 2: Convert to fraction form
   2,411.56/3,617.61 = 767.73/x
3. Step 3: Cross multiply
   2,411.56x = 3,617.61 × 767.73
4. Step 4: Simplify right side
   2,411.56x = 2,777,329.89
5. Step 5: Solve for x
   x = 2,777,329.89/2,411.56
6. Step 6: Final answer
   x = 1,151.67