Finding the Fourth Proportional to 2,687.23, 3,707.76 and 1,567.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.23 : 3,707.76 = 1,567.72 : x
2. Step 2: Convert to fraction form
   2,687.23/3,707.76 = 1,567.72/x
3. Step 3: Cross multiply
   2,687.23x = 3,707.76 × 1,567.72
4. Step 4: Simplify right side
   2,687.23x = 5,812,729.51
5. Step 5: Solve for x
   x = 5,812,729.51/2,687.23
6. Step 6: Final answer
   x = 2,163.09