Finding the Fourth Proportional to 2,663.43, 3,996.38 and 1,019.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.43 : 3,996.38 = 1,019.44 : x
2. Step 2: Convert to fraction form
   2,663.43/3,996.38 = 1,019.44/x
3. Step 3: Cross multiply
   2,663.43x = 3,996.38 × 1,019.44
4. Step 4: Simplify right side
   2,663.43x = 4,074,069.63
5. Step 5: Solve for x
   x = 4,074,069.63/2,663.43
6. Step 6: Final answer
   x = 1,529.63