Finding the Fourth Proportional to 3,650.72, 5,036.40 and 2,157.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,650.72 : 5,036.40 = 2,157.68 : x
2. Step 2: Convert to fraction form
   3,650.72/5,036.40 = 2,157.68/x
3. Step 3: Cross multiply
   3,650.72x = 5,036.40 × 2,157.68
4. Step 4: Simplify right side
   3,650.72x = 10,866,939.55
5. Step 5: Solve for x
   x = 10,866,939.55/3,650.72
6. Step 6: Final answer
   x = 2,976.66