Finding the Fourth Proportional to 3,653.12, 5,041.50 and 2,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,653.12 : 5,041.50 = 2,081.72 : x
2. Step 2: Convert to fraction form
   3,653.12/5,041.50 = 2,081.72/x
3. Step 3: Cross multiply
   3,653.12x = 5,041.50 × 2,081.72
4. Step 4: Simplify right side
   3,653.12x = 10,494,991.38
5. Step 5: Solve for x
   x = 10,494,991.38/3,653.12
6. Step 6: Final answer
   x = 2,872.88