Finding the Fourth Proportional to 1,429.31, 1,972.49 and 799.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.31 : 1,972.49 = 799.86 : x
2. Step 2: Convert to fraction form
   1,429.31/1,972.49 = 799.86/x
3. Step 3: Cross multiply
   1,429.31x = 1,972.49 × 799.86
4. Step 4: Simplify right side
   1,429.31x = 1,577,715.85
5. Step 5: Solve for x
   x = 1,577,715.85/1,429.31
6. Step 6: Final answer
   x = 1,103.83