Finding the Fourth Proportional to 2,788.50, 4,184.67 and 964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788.50 : 4,184.67 = 964.50 : x
2. Step 2: Convert to fraction form
   2,788.50/4,184.67 = 964.50/x
3. Step 3: Cross multiply
   2,788.50x = 4,184.67 × 964.50
4. Step 4: Simplify right side
   2,788.50x = 4,036,114.22
5. Step 5: Solve for x
   x = 4,036,114.22/2,788.50
6. Step 6: Final answer
   x = 1,447.41