Finding the Fourth Proportional to 1,728.69, 2,383.70 and 1,168.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.69 : 2,383.70 = 1,168.19 : x
2. Step 2: Convert to fraction form
   1,728.69/2,383.70 = 1,168.19/x
3. Step 3: Cross multiply
   1,728.69x = 2,383.70 × 1,168.19
4. Step 4: Simplify right side
   1,728.69x = 2,784,605.50
5. Step 5: Solve for x
   x = 2,784,605.50/1,728.69
6. Step 6: Final answer
   x = 1,610.82