Finding the Fourth Proportional to 2,189.26, 3,280.70 and 1,019.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.26 : 3,280.70 = 1,019.62 : x
2. Step 2: Convert to fraction form
   2,189.26/3,280.70 = 1,019.62/x
3. Step 3: Cross multiply
   2,189.26x = 3,280.70 × 1,019.62
4. Step 4: Simplify right side
   2,189.26x = 3,345,067.33
5. Step 5: Solve for x
   x = 3,345,067.33/2,189.26
6. Step 6: Final answer
   x = 1,527.94