Finding the Fourth Proportional to 2,766.48, 4,150.32 and 818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.48 : 4,150.32 = 818.82 : x
2. Step 2: Convert to fraction form
   2,766.48/4,150.32 = 818.82/x
3. Step 3: Cross multiply
   2,766.48x = 4,150.32 × 818.82
4. Step 4: Simplify right side
   2,766.48x = 3,398,365.02
5. Step 5: Solve for x
   x = 3,398,365.02/2,766.48
6. Step 6: Final answer
   x = 1,228.41