Finding the Fourth Proportional to 1,786.32, 2,680.61 and 965.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.32 : 2,680.61 = 965.16 : x
2. Step 2: Convert to fraction form
   1,786.32/2,680.61 = 965.16/x
3. Step 3: Cross multiply
   1,786.32x = 2,680.61 × 965.16
4. Step 4: Simplify right side
   1,786.32x = 2,587,212.72
5. Step 5: Solve for x
   x = 2,587,212.72/1,786.32
6. Step 6: Final answer
   x = 1,448.35