Finding the Fourth Proportional to 3,591.89, 5,387.90 and 994.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,591.89 : 5,387.90 = 994.83 : x
2. Step 2: Convert to fraction form
   3,591.89/5,387.90 = 994.83/x
3. Step 3: Cross multiply
   3,591.89x = 5,387.90 × 994.83
4. Step 4: Simplify right side
   3,591.89x = 5,360,044.56
5. Step 5: Solve for x
   x = 5,360,044.56/3,591.89
6. Step 6: Final answer
   x = 1,492.26