Finding the Fourth Proportional to 1,683.72, 2,323.33 and 965.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.72 : 2,323.33 = 965.86 : x
2. Step 2: Convert to fraction form
   1,683.72/2,323.33 = 965.86/x
3. Step 3: Cross multiply
   1,683.72x = 2,323.33 × 965.86
4. Step 4: Simplify right side
   1,683.72x = 2,244,022.82
5. Step 5: Solve for x
   x = 2,244,022.82/1,683.72
6. Step 6: Final answer
   x = 1,332.78