Finding the Fourth Proportional to 2,979.72, 4,469.52 and 1,224.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,979.72 : 4,469.52 = 1,224.24 : x
2. Step 2: Convert to fraction form
   2,979.72/4,469.52 = 1,224.24/x
3. Step 3: Cross multiply
   2,979.72x = 4,469.52 × 1,224.24
4. Step 4: Simplify right side
   2,979.72x = 5,471,765.16
5. Step 5: Solve for x
   x = 5,471,765.16/2,979.72
6. Step 6: Final answer
   x = 1,836.34