Finding the Fourth Proportional to 1,928.37, 2,658.79 and 1,573.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.37 : 2,658.79 = 1,573.29 : x
2. Step 2: Convert to fraction form
   1,928.37/2,658.79 = 1,573.29/x
3. Step 3: Cross multiply
   1,928.37x = 2,658.79 × 1,573.29
4. Step 4: Simplify right side
   1,928.37x = 4,183,049.69
5. Step 5: Solve for x
   x = 4,183,049.69/1,928.37
6. Step 6: Final answer
   x = 2,169.21