Finding the Fourth Proportional to 1,686.62, 2,327.42 and 968.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.62 : 2,327.42 = 968.89 : x
2. Step 2: Convert to fraction form
   1,686.62/2,327.42 = 968.89/x
3. Step 3: Cross multiply
   1,686.62x = 2,327.42 × 968.89
4. Step 4: Simplify right side
   1,686.62x = 2,255,007.02
5. Step 5: Solve for x
   x = 2,255,007.02/1,686.62
6. Step 6: Final answer
   x = 1,337.00