Finding the Fourth Proportional to 2,838.42, 4,258.22 and 890.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,838.42 : 4,258.22 = 890.82 : x
2. Step 2: Convert to fraction form
   2,838.42/4,258.22 = 890.82/x
3. Step 3: Cross multiply
   2,838.42x = 4,258.22 × 890.82
4. Step 4: Simplify right side
   2,838.42x = 3,793,307.54
5. Step 5: Solve for x
   x = 3,793,307.54/2,838.42
6. Step 6: Final answer
   x = 1,336.42