Finding the Fourth Proportional to 2,580.91, 3,561.82 and 1,461.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.91 : 3,561.82 = 1,461.90 : x
2. Step 2: Convert to fraction form
   2,580.91/3,561.82 = 1,461.90/x
3. Step 3: Cross multiply
   2,580.91x = 3,561.82 × 1,461.90
4. Step 4: Simplify right side
   2,580.91x = 5,207,024.66
5. Step 5: Solve for x
   x = 5,207,024.66/2,580.91
6. Step 6: Final answer
   x = 2,017.52