Finding the Fourth Proportional to 2,150.72, 3,224.16 and 979.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.72 : 3,224.16 = 979.52 : x
2. Step 2: Convert to fraction form
   2,150.72/3,224.16 = 979.52/x
3. Step 3: Cross multiply
   2,150.72x = 3,224.16 × 979.52
4. Step 4: Simplify right side
   2,150.72x = 3,158,129.20
5. Step 5: Solve for x
   x = 3,158,129.20/2,150.72
6. Step 6: Final answer
   x = 1,468.41