Finding the Fourth Proportional to 2,057.86, 3,086.65 and 962.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.86 : 3,086.65 = 962.47 : x
2. Step 2: Convert to fraction form
   2,057.86/3,086.65 = 962.47/x
3. Step 3: Cross multiply
   2,057.86x = 3,086.65 × 962.47
4. Step 4: Simplify right side
   2,057.86x = 2,970,808.03
5. Step 5: Solve for x
   x = 2,970,808.03/2,057.86
6. Step 6: Final answer
   x = 1,443.64