Finding the Fourth Proportional to 2,638.42, 3,958.04 and 883.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.42 : 3,958.04 = 883.10 : x
2. Step 2: Convert to fraction form
   2,638.42/3,958.04 = 883.10/x
3. Step 3: Cross multiply
   2,638.42x = 3,958.04 × 883.10
4. Step 4: Simplify right side
   2,638.42x = 3,495,325.33
5. Step 5: Solve for x
   x = 3,495,325.33/2,638.42
6. Step 6: Final answer
   x = 1,324.78