Finding the Fourth Proportional to 2,189.24, 3,020.89 and 1,304.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.24 : 3,020.89 = 1,304.87 : x
2. Step 2: Convert to fraction form
   2,189.24/3,020.89 = 1,304.87/x
3. Step 3: Cross multiply
   2,189.24x = 3,020.89 × 1,304.87
4. Step 4: Simplify right side
   2,189.24x = 3,941,868.73
5. Step 5: Solve for x
   x = 3,941,868.73/2,189.24
6. Step 6: Final answer
   x = 1,800.56