Finding the Fourth Proportional to 1,446.20, 1,997.12 and 1,153.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.20 : 1,997.12 = 1,153.62 : x
2. Step 2: Convert to fraction form
   1,446.20/1,997.12 = 1,153.62/x
3. Step 3: Cross multiply
   1,446.20x = 1,997.12 × 1,153.62
4. Step 4: Simplify right side
   1,446.20x = 2,303,917.57
5. Step 5: Solve for x
   x = 2,303,917.57/1,446.20
6. Step 6: Final answer
   x = 1,593.08