Finding the Fourth Proportional to 2,874.93, 3,957.69 and 2,580.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.93 : 3,957.69 = 2,580.09 : x
2. Step 2: Convert to fraction form
   2,874.93/3,957.69 = 2,580.09/x
3. Step 3: Cross multiply
   2,874.93x = 3,957.69 × 2,580.09
4. Step 4: Simplify right side
   2,874.93x = 10,211,196.39
5. Step 5: Solve for x
   x = 10,211,196.39/2,874.93
6. Step 6: Final answer
   x = 3,551.81