Finding the Fourth Proportional to 2,189.67, 3,286.49 and 1,150.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.67 : 3,286.49 = 1,150.35 : x
2. Step 2: Convert to fraction form
   2,189.67/3,286.49 = 1,150.35/x
3. Step 3: Cross multiply
   2,189.67x = 3,286.49 × 1,150.35
4. Step 4: Simplify right side
   2,189.67x = 3,780,608.02
5. Step 5: Solve for x
   x = 3,780,608.02/2,189.67
6. Step 6: Final answer
   x = 1,726.57