Finding the Fourth Proportional to 2,636.24, 3,638.17 and 1,517.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.24 : 3,638.17 = 1,517.15 : x
2. Step 2: Convert to fraction form
   2,636.24/3,638.17 = 1,517.15/x
3. Step 3: Cross multiply
   2,636.24x = 3,638.17 × 1,517.15
4. Step 4: Simplify right side
   2,636.24x = 5,519,649.62
5. Step 5: Solve for x
   x = 5,519,649.62/2,636.24
6. Step 6: Final answer
   x = 2,093.76