Finding the Fourth Proportional to 2,688.55, 3,710.20 and 1,569.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.55 : 3,710.20 = 1,569.27 : x
2. Step 2: Convert to fraction form
   2,688.55/3,710.20 = 1,569.27/x
3. Step 3: Cross multiply
   2,688.55x = 3,710.20 × 1,569.27
4. Step 4: Simplify right side
   2,688.55x = 5,822,305.55
5. Step 5: Solve for x
   x = 5,822,305.55/2,688.55
6. Step 6: Final answer
   x = 2,165.59