Finding the Fourth Proportional to 1,403.52, 2,105.33 and 363.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.52 : 2,105.33 = 363.56 : x
2. Step 2: Convert to fraction form
   1,403.52/2,105.33 = 363.56/x
3. Step 3: Cross multiply
   1,403.52x = 2,105.33 × 363.56
4. Step 4: Simplify right side
   1,403.52x = 765,401.43
5. Step 5: Solve for x
   x = 765,401.43/1,403.52
6. Step 6: Final answer
   x = 545.35