Finding the Fourth Proportional to 1,093.72, 1,641.20 and 363.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.72 : 1,641.20 = 363.52 : x
2. Step 2: Convert to fraction form
   1,093.72/1,641.20 = 363.52/x
3. Step 3: Cross multiply
   1,093.72x = 1,641.20 × 363.52
4. Step 4: Simplify right side
   1,093.72x = 596,609.02
5. Step 5: Solve for x
   x = 596,609.02/1,093.72
6. Step 6: Final answer
   x = 545.49