Finding the Fourth Proportional to 1,429.25, 1,972.17 and 799.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.25 : 1,972.17 = 799.74 : x
2. Step 2: Convert to fraction form
   1,429.25/1,972.17 = 799.74/x
3. Step 3: Cross multiply
   1,429.25x = 1,972.17 × 799.74
4. Step 4: Simplify right side
   1,429.25x = 1,577,223.24
5. Step 5: Solve for x
   x = 1,577,223.24/1,429.25
6. Step 6: Final answer
   x = 1,103.54