Finding the Fourth Proportional to 3,591.35, 5,387.33 and 994.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.35 : 5,387.33 = 994.28 : x
2. Step 2: Convert to fraction form
   3,591.35/5,387.33 = 994.28/x
3. Step 3: Cross multiply
   3,591.35x = 5,387.33 × 994.28
4. Step 4: Simplify right side
   3,591.35x = 5,356,482.56
5. Step 5: Solve for x
   x = 5,356,482.56/3,591.35
6. Step 6: Final answer
   x = 1,491.50