Finding the Fourth Proportional to 3,650.96, 5,036.36 and 2,157.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,650.96 : 5,036.36 = 2,157.72 : x
2. Step 2: Convert to fraction form
   3,650.96/5,036.36 = 2,157.72/x
3. Step 3: Cross multiply
   3,650.96x = 5,036.36 × 2,157.72
4. Step 4: Simplify right side
   3,650.96x = 10,867,043.91
5. Step 5: Solve for x
   x = 10,867,043.91/3,650.96
6. Step 6: Final answer
   x = 2,976.49