Finding the Fourth Proportional to 2,580.22, 3,560.67 and 1,571.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.22 : 3,560.67 = 1,571.59 : x
2. Step 2: Convert to fraction form
   2,580.22/3,560.67 = 1,571.59/x
3. Step 3: Cross multiply
   2,580.22x = 3,560.67 × 1,571.59
4. Step 4: Simplify right side
   2,580.22x = 5,595,913.37
5. Step 5: Solve for x
   x = 5,595,913.37/2,580.22
6. Step 6: Final answer
   x = 2,168.77