Finding the Fourth Proportional to 1,629.52, 2,443.16 and 808.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.52 : 2,443.16 = 808.32 : x
2. Step 2: Convert to fraction form
   1,629.52/2,443.16 = 808.32/x
3. Step 3: Cross multiply
   1,629.52x = 2,443.16 × 808.32
4. Step 4: Simplify right side
   1,629.52x = 1,974,855.09
5. Step 5: Solve for x
   x = 1,974,855.09/1,629.52
6. Step 6: Final answer
   x = 1,211.92