Finding the Fourth Proportional to 2,588.94, 3,570.12 and 2,217.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.94 : 3,570.12 = 2,217.15 : x
2. Step 2: Convert to fraction form
   2,588.94/3,570.12 = 2,217.15/x
3. Step 3: Cross multiply
   2,588.94x = 3,570.12 × 2,217.15
4. Step 4: Simplify right side
   2,588.94x = 7,915,491.56
5. Step 5: Solve for x
   x = 7,915,491.56/2,588.94
6. Step 6: Final answer
   x = 3,057.43