Finding the Fourth Proportional to 3,668.29, 5,063.31 and 2,157.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,668.29 : 5,063.31 = 2,157.23 : x
2. Step 2: Convert to fraction form
   3,668.29/5,063.31 = 2,157.23/x
3. Step 3: Cross multiply
   3,668.29x = 5,063.31 × 2,157.23
4. Step 4: Simplify right side
   3,668.29x = 10,922,736.89
5. Step 5: Solve for x
   x = 10,922,736.89/3,668.29
6. Step 6: Final answer
   x = 2,977.61