Finding the Fourth Proportional to 2,766.08, 4,149.72 and 818.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.08 : 4,149.72 = 818.48 : x
2. Step 2: Convert to fraction form
   2,766.08/4,149.72 = 818.48/x
3. Step 3: Cross multiply
   2,766.08x = 4,149.72 × 818.48
4. Step 4: Simplify right side
   2,766.08x = 3,396,462.83
5. Step 5: Solve for x
   x = 3,396,462.83/2,766.08
6. Step 6: Final answer
   x = 1,227.90