Finding the Fourth Proportional to 2,078.43, 3,116.76 and 1,038.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.43 : 3,116.76 = 1,038.03 : x
2. Step 2: Convert to fraction form
   2,078.43/3,116.76 = 1,038.03/x
3. Step 3: Cross multiply
   2,078.43x = 3,116.76 × 1,038.03
4. Step 4: Simplify right side
   2,078.43x = 3,235,290.38
5. Step 5: Solve for x
   x = 3,235,290.38/2,078.43
6. Step 6: Final answer
   x = 1,556.60