Finding the Fourth Proportional to 2,411.98, 3,617.73 and 769.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,411.98 : 3,617.73 = 769.70 : x
2. Step 2: Convert to fraction form
   2,411.98/3,617.73 = 769.70/x
3. Step 3: Cross multiply
   2,411.98x = 3,617.73 × 769.70
4. Step 4: Simplify right side
   2,411.98x = 2,784,575.83
5. Step 5: Solve for x
   x = 2,784,575.83/2,411.98
6. Step 6: Final answer
   x = 1,154.48