Finding the Fourth Proportional to 2,189.20, 3,020.46 and 1,350.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.20 : 3,020.46 = 1,350.04 : x
2. Step 2: Convert to fraction form
   2,189.20/3,020.46 = 1,350.04/x
3. Step 3: Cross multiply
   2,189.20x = 3,020.46 × 1,350.04
4. Step 4: Simplify right side
   2,189.20x = 4,077,741.82
5. Step 5: Solve for x
   x = 4,077,741.82/2,189.20
6. Step 6: Final answer
   x = 1,862.66