Finding the Fourth Proportional to 2,482.24, 3,723.32 and 838.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,482.24 : 3,723.32 = 838.78 : x
2. Step 2: Convert to fraction form
   2,482.24/3,723.32 = 838.78/x
3. Step 3: Cross multiply
   2,482.24x = 3,723.32 × 838.78
4. Step 4: Simplify right side
   2,482.24x = 3,123,046.35
5. Step 5: Solve for x
   x = 3,123,046.35/2,482.24
6. Step 6: Final answer
   x = 1,258.16