Finding the Fourth Proportional to 2,957.82, 4,436.88 and 766.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.82 : 4,436.88 = 766.56 : x
2. Step 2: Convert to fraction form
   2,957.82/4,436.88 = 766.56/x
3. Step 3: Cross multiply
   2,957.82x = 4,436.88 × 766.56
4. Step 4: Simplify right side
   2,957.82x = 3,401,134.73
5. Step 5: Solve for x
   x = 3,401,134.73/2,957.82
6. Step 6: Final answer
   x = 1,149.88