Finding the Fourth Proportional to 2,638.38, 3,954.14 and 1,076.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.38 : 3,954.14 = 1,076.55 : x
2. Step 2: Convert to fraction form
   2,638.38/3,954.14 = 1,076.55/x
3. Step 3: Cross multiply
   2,638.38x = 3,954.14 × 1,076.55
4. Step 4: Simplify right side
   2,638.38x = 4,256,824.03
5. Step 5: Solve for x
   x = 4,256,824.03/2,638.38
6. Step 6: Final answer
   x = 1,613.42