Finding the Fourth Proportional to 2,580.82, 3,561.76 and 1,518.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.82 : 3,561.76 = 1,518.30 : x
2. Step 2: Convert to fraction form
   2,580.82/3,561.76 = 1,518.30/x
3. Step 3: Cross multiply
   2,580.82x = 3,561.76 × 1,518.30
4. Step 4: Simplify right side
   2,580.82x = 5,407,820.21
5. Step 5: Solve for x
   x = 5,407,820.21/2,580.82
6. Step 6: Final answer
   x = 2,095.39