Finding the Fourth Proportional to 1,433.27, 1,977.85 and 803.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.27 : 1,977.85 = 803.79 : x
2. Step 2: Convert to fraction form
   1,433.27/1,977.85 = 803.79/x
3. Step 3: Cross multiply
   1,433.27x = 1,977.85 × 803.79
4. Step 4: Simplify right side
   1,433.27x = 1,589,776.05
5. Step 5: Solve for x
   x = 1,589,776.05/1,433.27
6. Step 6: Final answer
   x = 1,109.20