Finding the Fourth Proportional to 2,505.20, 3,457.33 and 1,443.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.20 : 3,457.33 = 1,443.24 : x
2. Step 2: Convert to fraction form
   2,505.20/3,457.33 = 1,443.24/x
3. Step 3: Cross multiply
   2,505.20x = 3,457.33 × 1,443.24
4. Step 4: Simplify right side
   2,505.20x = 4,989,771.18
5. Step 5: Solve for x
   x = 4,989,771.18/2,505.20
6. Step 6: Final answer
   x = 1,991.76