Finding the Fourth Proportional to 1,686.65, 2,327.33 and 968.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.65 : 2,327.33 = 968.73 : x
2. Step 2: Convert to fraction form
   1,686.65/2,327.33 = 968.73/x
3. Step 3: Cross multiply
   1,686.65x = 2,327.33 × 968.73
4. Step 4: Simplify right side
   1,686.65x = 2,254,549.55
5. Step 5: Solve for x
   x = 2,254,549.55/1,686.65
6. Step 6: Final answer
   x = 1,336.71