Finding the Fourth Proportional to 1,629.72, 2,445.59 and 808.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629.72 : 2,445.59 = 808.08 : x
2. Step 2: Convert to fraction form
   1,629.72/2,445.59 = 808.08/x
3. Step 3: Cross multiply
   1,629.72x = 2,445.59 × 808.08
4. Step 4: Simplify right side
   1,629.72x = 1,976,225.22
5. Step 5: Solve for x
   x = 1,976,225.22/1,629.72
6. Step 6: Final answer
   x = 1,212.62