Finding the Fourth Proportional to 2,628.38, 3,943.15 and 1,518.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.38 : 3,943.15 = 1,518.53 : x
2. Step 2: Convert to fraction form
   2,628.38/3,943.15 = 1,518.53/x
3. Step 3: Cross multiply
   2,628.38x = 3,943.15 × 1,518.53
4. Step 4: Simplify right side
   2,628.38x = 5,987,768.06
5. Step 5: Solve for x
   x = 5,987,768.06/2,628.38
6. Step 6: Final answer
   x = 2,278.12