Finding the Fourth Proportional to 2,151.72, 3,224.34 and 1,601.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.72 : 3,224.34 = 1,601.32 : x
2. Step 2: Convert to fraction form
   2,151.72/3,224.34 = 1,601.32/x
3. Step 3: Cross multiply
   2,151.72x = 3,224.34 × 1,601.32
4. Step 4: Simplify right side
   2,151.72x = 5,163,200.13
5. Step 5: Solve for x
   x = 5,163,200.13/2,151.72
6. Step 6: Final answer
   x = 2,399.57