Finding the Fourth Proportional to 2,636.84, 3,639.60 and 1,518.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.84 : 3,639.60 = 1,518.57 : x
2. Step 2: Convert to fraction form
   2,636.84/3,639.60 = 1,518.57/x
3. Step 3: Cross multiply
   2,636.84x = 3,639.60 × 1,518.57
4. Step 4: Simplify right side
   2,636.84x = 5,526,973.72
5. Step 5: Solve for x
   x = 5,526,973.72/2,636.84
6. Step 6: Final answer
   x = 2,096.06