Finding the Fourth Proportional to 2,089.45, 2,882.35 and 1,809.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.45 : 2,882.35 = 1,809.60 : x
2. Step 2: Convert to fraction form
   2,089.45/2,882.35 = 1,809.60/x
3. Step 3: Cross multiply
   2,089.45x = 2,882.35 × 1,809.60
4. Step 4: Simplify right side
   2,089.45x = 5,215,900.56
5. Step 5: Solve for x
   x = 5,215,900.56/2,089.45
6. Step 6: Final answer
   x = 2,496.30