Finding the Fourth Proportional to 3,636.90, 5,018.22 and 2,064.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.90 : 5,018.22 = 2,064.78 : x
2. Step 2: Convert to fraction form
   3,636.90/5,018.22 = 2,064.78/x
3. Step 3: Cross multiply
   3,636.90x = 5,018.22 × 2,064.78
4. Step 4: Simplify right side
   3,636.90x = 10,361,520.29
5. Step 5: Solve for x
   x = 10,361,520.29/3,636.90
6. Step 6: Final answer
   x = 2,849.00