Finding the Fourth Proportional to 1,429.27, 1,972.19 and 799.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.27 : 1,972.19 = 799.72 : x
2. Step 2: Convert to fraction form
   1,429.27/1,972.19 = 799.72/x
3. Step 3: Cross multiply
   1,429.27x = 1,972.19 × 799.72
4. Step 4: Simplify right side
   1,429.27x = 1,577,199.79
5. Step 5: Solve for x
   x = 1,577,199.79/1,429.27
6. Step 6: Final answer
   x = 1,103.50