Finding the Fourth Proportional to 1,472.72, 2,032.29 and 809.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.72 : 2,032.29 = 809.55 : x
2. Step 2: Convert to fraction form
   1,472.72/2,032.29 = 809.55/x
3. Step 3: Cross multiply
   1,472.72x = 2,032.29 × 809.55
4. Step 4: Simplify right side
   1,472.72x = 1,645,240.37
5. Step 5: Solve for x
   x = 1,645,240.37/1,472.72
6. Step 6: Final answer
   x = 1,117.14