Finding the Fourth Proportional to 3,980.72, 5,964.84 and 2,224.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.72 : 5,964.84 = 2,224.16 : x
2. Step 2: Convert to fraction form
   3,980.72/5,964.84 = 2,224.16/x
3. Step 3: Cross multiply
   3,980.72x = 5,964.84 × 2,224.16
4. Step 4: Simplify right side
   3,980.72x = 13,266,758.53
5. Step 5: Solve for x
   x = 13,266,758.53/3,980.72
6. Step 6: Final answer
   x = 3,332.75