Finding the Fourth Proportional to 2,637.59, 3,639.76 and 1,518.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.59 : 3,639.76 = 1,518.57 : x
2. Step 2: Convert to fraction form
   2,637.59/3,639.76 = 1,518.57/x
3. Step 3: Cross multiply
   2,637.59x = 3,639.76 × 1,518.57
4. Step 4: Simplify right side
   2,637.59x = 5,527,204.55
5. Step 5: Solve for x
   x = 5,527,204.55/2,637.59
6. Step 6: Final answer
   x = 2,095.56