Finding the Fourth Proportional to 1,616.43, 2,231.52 and 1,088.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.43 : 2,231.52 = 1,088.09 : x
2. Step 2: Convert to fraction form
   1,616.43/2,231.52 = 1,088.09/x
3. Step 3: Cross multiply
   1,616.43x = 2,231.52 × 1,088.09
4. Step 4: Simplify right side
   1,616.43x = 2,428,100.18
5. Step 5: Solve for x
   x = 2,428,100.18/1,616.43
6. Step 6: Final answer
   x = 1,502.14