Finding the Fourth Proportional to 2,389.50, 3,584.23 and 2,081.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.50 : 3,584.23 = 2,081.56 : x
2. Step 2: Convert to fraction form
   2,389.50/3,584.23 = 2,081.56/x
3. Step 3: Cross multiply
   2,389.50x = 3,584.23 × 2,081.56
4. Step 4: Simplify right side
   2,389.50x = 7,460,789.80
5. Step 5: Solve for x
   x = 7,460,789.80/2,389.50
6. Step 6: Final answer
   x = 3,122.32