Finding the Fourth Proportional to 1,686.29, 2,327.05 and 940.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686.29 : 2,327.05 = 940.33 : x
2. Step 2: Convert to fraction form
   1,686.29/2,327.05 = 940.33/x
3. Step 3: Cross multiply
   1,686.29x = 2,327.05 × 940.33
4. Step 4: Simplify right side
   1,686.29x = 2,188,188.57
5. Step 5: Solve for x
   x = 2,188,188.57/1,686.29
6. Step 6: Final answer
   x = 1,297.64