Finding the Fourth Proportional to 2,057.89, 3,086.62 and 962.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.89 : 3,086.62 = 962.47 : x
2. Step 2: Convert to fraction form
   2,057.89/3,086.62 = 962.47/x
3. Step 3: Cross multiply
   2,057.89x = 3,086.62 × 962.47
4. Step 4: Simplify right side
   2,057.89x = 2,970,779.15
5. Step 5: Solve for x
   x = 2,970,779.15/2,057.89
6. Step 6: Final answer
   x = 1,443.60