Finding the Fourth Proportional to 2,183.75, 3,013.53 and 1,189.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.75 : 3,013.53 = 1,189.05 : x
2. Step 2: Convert to fraction form
   2,183.75/3,013.53 = 1,189.05/x
3. Step 3: Cross multiply
   2,183.75x = 3,013.53 × 1,189.05
4. Step 4: Simplify right side
   2,183.75x = 3,583,222.78
5. Step 5: Solve for x
   x = 3,583,222.78/2,183.75
6. Step 6: Final answer
   x = 1,640.86