Finding the Fourth Proportional to 2,723.48, 4,080.72 and 2,621

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.48 : 4,080.72 = 2,621 : x
2. Step 2: Convert to fraction form
   2,723.48/4,080.72 = 2,621/x
3. Step 3: Cross multiply
   2,723.48x = 4,080.72 × 2,621
4. Step 4: Simplify right side
   2,723.48x = 10,695,567.12
5. Step 5: Solve for x
   x = 10,695,567.12/2,723.48
6. Step 6: Final answer
   x = 3,927.17