Finding the Fourth Proportional to 2,411.16, 3,616.76 and 767.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.16 : 3,616.76 = 767.72 : x
2. Step 2: Convert to fraction form
   2,411.16/3,616.76 = 767.72/x
3. Step 3: Cross multiply
   2,411.16x = 3,616.76 × 767.72
4. Step 4: Simplify right side
   2,411.16x = 2,776,658.99
5. Step 5: Solve for x
   x = 2,776,658.99/2,411.16
6. Step 6: Final answer
   x = 1,151.59