Finding the Fourth Proportional to 2,891.69, 3,997.25 and 2,580.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,891.69 : 3,997.25 = 2,580.04 : x
2. Step 2: Convert to fraction form
   2,891.69/3,997.25 = 2,580.04/x
3. Step 3: Cross multiply
   2,891.69x = 3,997.25 × 2,580.04
4. Step 4: Simplify right side
   2,891.69x = 10,313,066.97
5. Step 5: Solve for x
   x = 10,313,066.97/2,891.69
6. Step 6: Final answer
   x = 3,566.45