Finding the Fourth Proportional to 2,965.40, 4,448.05 and 885.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,965.40 : 4,448.05 = 885.41 : x
2. Step 2: Convert to fraction form
   2,965.40/4,448.05 = 885.41/x
3. Step 3: Cross multiply
   2,965.40x = 4,448.05 × 885.41
4. Step 4: Simplify right side
   2,965.40x = 3,938,323.50
5. Step 5: Solve for x
   x = 3,938,323.50/2,965.40
6. Step 6: Final answer
   x = 1,328.09