Finding the Fourth Proportional to 2,278.80, 3,144.42 and 1,616.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278.80 : 3,144.42 = 1,616.22 : x
2. Step 2: Convert to fraction form
   2,278.80/3,144.42 = 1,616.22/x
3. Step 3: Cross multiply
   2,278.80x = 3,144.42 × 1,616.22
4. Step 4: Simplify right side
   2,278.80x = 5,082,074.49
5. Step 5: Solve for x
   x = 5,082,074.49/2,278.80
6. Step 6: Final answer
   x = 2,230.15