Finding the Fourth Proportional to 1,727.15, 2,395.69 and 1,668.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.15 : 2,395.69 = 1,668.15 : x
2. Step 2: Convert to fraction form
   1,727.15/2,395.69 = 1,668.15/x
3. Step 3: Cross multiply
   1,727.15x = 2,395.69 × 1,668.15
4. Step 4: Simplify right side
   1,727.15x = 3,996,366.10
5. Step 5: Solve for x
   x = 3,996,366.10/1,727.15
6. Step 6: Final answer
   x = 2,313.86