Finding the Fourth Proportional to 2,003.40, 3,002.70 and 1,028.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.40 : 3,002.70 = 1,028.04 : x
2. Step 2: Convert to fraction form
   2,003.40/3,002.70 = 1,028.04/x
3. Step 3: Cross multiply
   2,003.40x = 3,002.70 × 1,028.04
4. Step 4: Simplify right side
   2,003.40x = 3,086,895.71
5. Step 5: Solve for x
   x = 3,086,895.71/2,003.40
6. Step 6: Final answer
   x = 1,540.83