Finding the Fourth Proportional to 1,786.50, 2,680.29 and 964.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.50 : 2,680.29 = 964.62 : x
2. Step 2: Convert to fraction form
   1,786.50/2,680.29 = 964.62/x
3. Step 3: Cross multiply
   1,786.50x = 2,680.29 × 964.62
4. Step 4: Simplify right side
   1,786.50x = 2,585,461.34
5. Step 5: Solve for x
   x = 2,585,461.34/1,786.50
6. Step 6: Final answer
   x = 1,447.22