Finding the Fourth Proportional to 2,505.56, 3,457.29 and 1,443.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.56 : 3,457.29 = 1,443.37 : x
2. Step 2: Convert to fraction form
   2,505.56/3,457.29 = 1,443.37/x
3. Step 3: Cross multiply
   2,505.56x = 3,457.29 × 1,443.37
4. Step 4: Simplify right side
   2,505.56x = 4,990,148.67
5. Step 5: Solve for x
   x = 4,990,148.67/2,505.56
6. Step 6: Final answer
   x = 1,991.63