Finding the Fourth Proportional to 2,577.27, 3,555.77 and 1,569.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.27 : 3,555.77 = 1,569.33 : x
2. Step 2: Convert to fraction form
   2,577.27/3,555.77 = 1,569.33/x
3. Step 3: Cross multiply
   2,577.27x = 3,555.77 × 1,569.33
4. Step 4: Simplify right side
   2,577.27x = 5,580,168.69
5. Step 5: Solve for x
   x = 5,580,168.69/2,577.27
6. Step 6: Final answer
   x = 2,165.15