Finding the Fourth Proportional to 2,767.42, 4,151.56 and 819.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.42 : 4,151.56 = 819.82 : x
2. Step 2: Convert to fraction form
   2,767.42/4,151.56 = 819.82/x
3. Step 3: Cross multiply
   2,767.42x = 4,151.56 × 819.82
4. Step 4: Simplify right side
   2,767.42x = 3,403,531.92
5. Step 5: Solve for x
   x = 3,403,531.92/2,767.42
6. Step 6: Final answer
   x = 1,229.86