Finding the Fourth Proportional to 2,183.89, 3,013.78 and 1,189.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.89 : 3,013.78 = 1,189.17 : x
2. Step 2: Convert to fraction form
   2,183.89/3,013.78 = 1,189.17/x
3. Step 3: Cross multiply
   2,183.89x = 3,013.78 × 1,189.17
4. Step 4: Simplify right side
   2,183.89x = 3,583,881.69
5. Step 5: Solve for x
   x = 3,583,881.69/2,183.89
6. Step 6: Final answer
   x = 1,641.05