Finding the Fourth Proportional to 2,057.61, 3,086.28 and 962.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.61 : 3,086.28 = 962.22 : x
2. Step 2: Convert to fraction form
   2,057.61/3,086.28 = 962.22/x
3. Step 3: Cross multiply
   2,057.61x = 3,086.28 × 962.22
4. Step 4: Simplify right side
   2,057.61x = 2,969,680.34
5. Step 5: Solve for x
   x = 2,969,680.34/2,057.61
6. Step 6: Final answer
   x = 1,443.27