Finding the Fourth Proportional to 962.43, 1,443.69 and 837.99

Step by Step Solution

1. Step 1: Write the proportion equation
   962.43 : 1,443.69 = 837.99 : x
2. Step 2: Convert to fraction form
   962.43/1,443.69 = 837.99/x
3. Step 3: Cross multiply
   962.43x = 1,443.69 × 837.99
4. Step 4: Simplify right side
   962.43x = 1,209,797.78
5. Step 5: Solve for x
   x = 1,209,797.78/962.43
6. Step 6: Final answer
   x = 1,257.02