Finding the Fourth Proportional to 2,636.89, 3,638.94 and 1,518.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.89 : 3,638.94 = 1,518.13 : x
2. Step 2: Convert to fraction form
   2,636.89/3,638.94 = 1,518.13/x
3. Step 3: Cross multiply
   2,636.89x = 3,638.94 × 1,518.13
4. Step 4: Simplify right side
   2,636.89x = 5,524,383.98
5. Step 5: Solve for x
   x = 5,524,383.98/2,636.89
6. Step 6: Final answer
   x = 2,095.04