Finding the Fourth Proportional to 2,628.47, 3,937.43 and 1,308.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.47 : 3,937.43 = 1,308.24 : x
2. Step 2: Convert to fraction form
   2,628.47/3,937.43 = 1,308.24/x
3. Step 3: Cross multiply
   2,628.47x = 3,937.43 × 1,308.24
4. Step 4: Simplify right side
   2,628.47x = 5,151,096.88
5. Step 5: Solve for x
   x = 5,151,096.88/2,628.47
6. Step 6: Final answer
   x = 1,959.73