Finding the Fourth Proportional to 2,505.69, 3,457.62 and 1,443.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.69 : 3,457.62 = 1,443.65 : x
2. Step 2: Convert to fraction form
   2,505.69/3,457.62 = 1,443.65/x
3. Step 3: Cross multiply
   2,505.69x = 3,457.62 × 1,443.65
4. Step 4: Simplify right side
   2,505.69x = 4,991,575.82
5. Step 5: Solve for x
   x = 4,991,575.82/2,505.69
6. Step 6: Final answer
   x = 1,992.10