Finding the Fourth Proportional to 2,040.38, 3,058.17 and 870.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.38 : 3,058.17 = 870.03 : x
2. Step 2: Convert to fraction form
   2,040.38/3,058.17 = 870.03/x
3. Step 3: Cross multiply
   2,040.38x = 3,058.17 × 870.03
4. Step 4: Simplify right side
   2,040.38x = 2,660,699.65
5. Step 5: Solve for x
   x = 2,660,699.65/2,040.38
6. Step 6: Final answer
   x = 1,304.02