Finding the Fourth Proportional to 3,002.40, 4,503.98 and 1,028.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,002.40 : 4,503.98 = 1,028.43 : x
2. Step 2: Convert to fraction form
   3,002.40/4,503.98 = 1,028.43/x
3. Step 3: Cross multiply
   3,002.40x = 4,503.98 × 1,028.43
4. Step 4: Simplify right side
   3,002.40x = 4,632,030.72
5. Step 5: Solve for x
   x = 4,632,030.72/3,002.40
6. Step 6: Final answer
   x = 1,542.78