Finding the Fourth Proportional to 2,387.49, 3,294.32 and 1,443.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.49 : 3,294.32 = 1,443.03 : x
2. Step 2: Convert to fraction form
   2,387.49/3,294.32 = 1,443.03/x
3. Step 3: Cross multiply
   2,387.49x = 3,294.32 × 1,443.03
4. Step 4: Simplify right side
   2,387.49x = 4,753,795.37
5. Step 5: Solve for x
   x = 4,753,795.37/2,387.49
6. Step 6: Final answer
   x = 1,991.13