Finding the Fourth Proportional to 3,158.82, 4,738.52 and 818.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,158.82 : 4,738.52 = 818.82 : x
2. Step 2: Convert to fraction form
   3,158.82/4,738.52 = 818.82/x
3. Step 3: Cross multiply
   3,158.82x = 4,738.52 × 818.82
4. Step 4: Simplify right side
   3,158.82x = 3,879,994.95
5. Step 5: Solve for x
   x = 3,879,994.95/3,158.82
6. Step 6: Final answer
   x = 1,228.31