Finding the Fourth Proportional to 2,957.94, 4,436.88 and 766.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957.94 : 4,436.88 = 766.47 : x
2. Step 2: Convert to fraction form
   2,957.94/4,436.88 = 766.47/x
3. Step 3: Cross multiply
   2,957.94x = 4,436.88 × 766.47
4. Step 4: Simplify right side
   2,957.94x = 3,400,735.41
5. Step 5: Solve for x
   x = 3,400,735.41/2,957.94
6. Step 6: Final answer
   x = 1,149.70