Finding the Fourth Proportional to 2,189.58, 3,020.46 and 1,305.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.58 : 3,020.46 = 1,305.24 : x
2. Step 2: Convert to fraction form
   2,189.58/3,020.46 = 1,305.24/x
3. Step 3: Cross multiply
   2,189.58x = 3,020.46 × 1,305.24
4. Step 4: Simplify right side
   2,189.58x = 3,942,425.21
5. Step 5: Solve for x
   x = 3,942,425.21/2,189.58
6. Step 6: Final answer
   x = 1,800.54