Finding the Fourth Proportional to 1,429.25, 1,972.41 and 808.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.25 : 1,972.41 = 808.25 : x
2. Step 2: Convert to fraction form
   1,429.25/1,972.41 = 808.25/x
3. Step 3: Cross multiply
   1,429.25x = 1,972.41 × 808.25
4. Step 4: Simplify right side
   1,429.25x = 1,594,200.38
5. Step 5: Solve for x
   x = 1,594,200.38/1,429.25
6. Step 6: Final answer
   x = 1,115.41