Finding the Fourth Proportional to 3,591.27, 5,387.37 and 994.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.27 : 5,387.37 = 994.23 : x
2. Step 2: Convert to fraction form
   3,591.27/5,387.37 = 994.23/x
3. Step 3: Cross multiply
   3,591.27x = 5,387.37 × 994.23
4. Step 4: Simplify right side
   3,591.27x = 5,356,284.88
5. Step 5: Solve for x
   x = 5,356,284.88/3,591.27
6. Step 6: Final answer
   x = 1,491.47