Finding the Fourth Proportional to 2,664.27, 3,996.40 and 716.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.27 : 3,996.40 = 716.47 : x
2. Step 2: Convert to fraction form
   2,664.27/3,996.40 = 716.47/x
3. Step 3: Cross multiply
   2,664.27x = 3,996.40 × 716.47
4. Step 4: Simplify right side
   2,664.27x = 2,863,300.71
5. Step 5: Solve for x
   x = 2,863,300.71/2,664.27
6. Step 6: Final answer
   x = 1,074.70