Finding the Fourth Proportional to 2,073.28, 2,861.04 and 1,189.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.28 : 2,861.04 = 1,189.16 : x
2. Step 2: Convert to fraction form
   2,073.28/2,861.04 = 1,189.16/x
3. Step 3: Cross multiply
   2,073.28x = 2,861.04 × 1,189.16
4. Step 4: Simplify right side
   2,073.28x = 3,402,234.33
5. Step 5: Solve for x
   x = 3,402,234.33/2,073.28
6. Step 6: Final answer
   x = 1,640.99