Finding the Fourth Proportional to 1,429.30, 1,972.44 and 799.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.30 : 1,972.44 = 799.88 : x
2. Step 2: Convert to fraction form
   1,429.30/1,972.44 = 799.88/x
3. Step 3: Cross multiply
   1,429.30x = 1,972.44 × 799.88
4. Step 4: Simplify right side
   1,429.30x = 1,577,715.31
5. Step 5: Solve for x
   x = 1,577,715.31/1,429.30
6. Step 6: Final answer
   x = 1,103.84