Finding the Fourth Proportional to 2,814.24, 4,221.42 and 965.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.24 : 4,221.42 = 965.34 : x
2. Step 2: Convert to fraction form
   2,814.24/4,221.42 = 965.34/x
3. Step 3: Cross multiply
   2,814.24x = 4,221.42 × 965.34
4. Step 4: Simplify right side
   2,814.24x = 4,075,105.58
5. Step 5: Solve for x
   x = 4,075,105.58/2,814.24
6. Step 6: Final answer
   x = 1,448.03