Finding the Fourth Proportional to 2,818.68, 4,227.64 and 738.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,818.68 : 4,227.64 = 738.82 : x
2. Step 2: Convert to fraction form
   2,818.68/4,227.64 = 738.82/x
3. Step 3: Cross multiply
   2,818.68x = 4,227.64 × 738.82
4. Step 4: Simplify right side
   2,818.68x = 3,123,464.98
5. Step 5: Solve for x
   x = 3,123,464.98/2,818.68
6. Step 6: Final answer
   x = 1,108.13