Finding the Fourth Proportional to 2,291.44, 3,162.17 and 1,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,291.44 : 3,162.17 = 1,243.50 : x
2. Step 2: Convert to fraction form
   2,291.44/3,162.17 = 1,243.50/x
3. Step 3: Cross multiply
   2,291.44x = 3,162.17 × 1,243.50
4. Step 4: Simplify right side
   2,291.44x = 3,932,142.58
5. Step 5: Solve for x
   x = 3,932,142.58/2,291.44
6. Step 6: Final answer
   x = 1,716.02