Finding the Fourth Proportional to 2,637.29, 3,639.82 and 1,518.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.29 : 3,639.82 = 1,518.20 : x
2. Step 2: Convert to fraction form
   2,637.29/3,639.82 = 1,518.20/x
3. Step 3: Cross multiply
   2,637.29x = 3,639.82 × 1,518.20
4. Step 4: Simplify right side
   2,637.29x = 5,525,974.72
5. Step 5: Solve for x
   x = 5,525,974.72/2,637.29
6. Step 6: Final answer
   x = 2,095.32