Finding the Fourth Proportional to 2,142.24, 3,207.72 and 1,723.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.24 : 3,207.72 = 1,723.54 : x
2. Step 2: Convert to fraction form
   2,142.24/3,207.72 = 1,723.54/x
3. Step 3: Cross multiply
   2,142.24x = 3,207.72 × 1,723.54
4. Step 4: Simplify right side
   2,142.24x = 5,528,633.00
5. Step 5: Solve for x
   x = 5,528,633.00/2,142.24
6. Step 6: Final answer
   x = 2,580.77