Finding the Fourth Proportional to 1,472.72, 2,032.34 and 809.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.72 : 2,032.34 = 809.58 : x
2. Step 2: Convert to fraction form
   1,472.72/2,032.34 = 809.58/x
3. Step 3: Cross multiply
   1,472.72x = 2,032.34 × 809.58
4. Step 4: Simplify right side
   1,472.72x = 1,645,341.82
5. Step 5: Solve for x
   x = 1,645,341.82/1,472.72
6. Step 6: Final answer
   x = 1,117.21