Finding the Fourth Proportional to 1,610.50, 2,414.57 and 1,089.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.50 : 2,414.57 = 1,089.21 : x
2. Step 2: Convert to fraction form
   1,610.50/2,414.57 = 1,089.21/x
3. Step 3: Cross multiply
   1,610.50x = 2,414.57 × 1,089.21
4. Step 4: Simplify right side
   1,610.50x = 2,629,973.79
5. Step 5: Solve for x
   x = 2,629,973.79/1,610.50
6. Step 6: Final answer
   x = 1,633.02