Finding the Fourth Proportional to 2,688.56, 3,710.76 and 1,569.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.56 : 3,710.76 = 1,569.32 : x
2. Step 2: Convert to fraction form
   2,688.56/3,710.76 = 1,569.32/x
3. Step 3: Cross multiply
   2,688.56x = 3,710.76 × 1,569.32
4. Step 4: Simplify right side
   2,688.56x = 5,823,369.88
5. Step 5: Solve for x
   x = 5,823,369.88/2,688.56
6. Step 6: Final answer
   x = 2,165.98