Finding the Fourth Proportional to 2,580.89, 3,561.39 and 1,461.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.89 : 3,561.39 = 1,461.87 : x
2. Step 2: Convert to fraction form
   2,580.89/3,561.39 = 1,461.87/x
3. Step 3: Cross multiply
   2,580.89x = 3,561.39 × 1,461.87
4. Step 4: Simplify right side
   2,580.89x = 5,206,289.20
5. Step 5: Solve for x
   x = 5,206,289.20/2,580.89
6. Step 6: Final answer
   x = 2,017.25