Finding the Fourth Proportional to 2,410.72, 3,616.16 and 767.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,410.72 : 3,616.16 = 767.68 : x
2. Step 2: Convert to fraction form
   2,410.72/3,616.16 = 767.68/x
3. Step 3: Cross multiply
   2,410.72x = 3,616.16 × 767.68
4. Step 4: Simplify right side
   2,410.72x = 2,776,053.71
5. Step 5: Solve for x
   x = 2,776,053.71/2,410.72
6. Step 6: Final answer
   x = 1,151.55