Finding the Fourth Proportional to 2,183.42, 3,013.10 and 1,188.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.42 : 3,013.10 = 1,188.73 : x
2. Step 2: Convert to fraction form
   2,183.42/3,013.10 = 1,188.73/x
3. Step 3: Cross multiply
   2,183.42x = 3,013.10 × 1,188.73
4. Step 4: Simplify right side
   2,183.42x = 3,581,747.69
5. Step 5: Solve for x
   x = 3,581,747.69/2,183.42
6. Step 6: Final answer
   x = 1,640.43