Finding the Fourth Proportional to 2,766.96, 4,150.38 and 819.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.96 : 4,150.38 = 819.18 : x
2. Step 2: Convert to fraction form
   2,766.96/4,150.38 = 819.18/x
3. Step 3: Cross multiply
   2,766.96x = 4,150.38 × 819.18
4. Step 4: Simplify right side
   2,766.96x = 3,399,908.29
5. Step 5: Solve for x
   x = 3,399,908.29/2,766.96
6. Step 6: Final answer
   x = 1,228.75