Finding the Fourth Proportional to 2,628.53, 3,942.34 and 962.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.53 : 3,942.34 = 962.31 : x
2. Step 2: Convert to fraction form
   2,628.53/3,942.34 = 962.31/x
3. Step 3: Cross multiply
   2,628.53x = 3,942.34 × 962.31
4. Step 4: Simplify right side
   2,628.53x = 3,793,753.21
5. Step 5: Solve for x
   x = 3,793,753.21/2,628.53
6. Step 6: Final answer
   x = 1,443.30