Finding the Fourth Proportional to 1,429.35, 1,972.49 and 799.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.35 : 1,972.49 = 799.87 : x
2. Step 2: Convert to fraction form
   1,429.35/1,972.49 = 799.87/x
3. Step 3: Cross multiply
   1,429.35x = 1,972.49 × 799.87
4. Step 4: Simplify right side
   1,429.35x = 1,577,724.80
5. Step 5: Solve for x
   x = 1,577,724.80/1,429.35
6. Step 6: Final answer
   x = 1,103.81