Finding the Fourth Proportional to 3,389.50, 5,084.34 and 1,081

Step by Step Solution

1. Step 1: Write the proportion equation
   3,389.50 : 5,084.34 = 1,081 : x
2. Step 2: Convert to fraction form
   3,389.50/5,084.34 = 1,081/x
3. Step 3: Cross multiply
   3,389.50x = 5,084.34 × 1,081
4. Step 4: Simplify right side
   3,389.50x = 5,496,171.54
5. Step 5: Solve for x
   x = 5,496,171.54/3,389.50
6. Step 6: Final answer
   x = 1,621.53