Finding the Fourth Proportional to 1,120.34, 1,545.54 and 727.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.34 : 1,545.54 = 727.22 : x
2. Step 2: Convert to fraction form
   1,120.34/1,545.54 = 727.22/x
3. Step 3: Cross multiply
   1,120.34x = 1,545.54 × 727.22
4. Step 4: Simplify right side
   1,120.34x = 1,123,947.60
5. Step 5: Solve for x
   x = 1,123,947.60/1,120.34
6. Step 6: Final answer
   x = 1,003.22