Finding the Fourth Proportional to 3,651.23, 5,038.49 and 2,159.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.23 : 5,038.49 = 2,159.28 : x
2. Step 2: Convert to fraction form
   3,651.23/5,038.49 = 2,159.28/x
3. Step 3: Cross multiply
   3,651.23x = 5,038.49 × 2,159.28
4. Step 4: Simplify right side
   3,651.23x = 10,879,499.89
5. Step 5: Solve for x
   x = 10,879,499.89/3,651.23
6. Step 6: Final answer
   x = 2,979.68