Finding the Fourth Proportional to 2,663.59, 3,995.52 and 1,019.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.59 : 3,995.52 = 1,019.56 : x
2. Step 2: Convert to fraction form
   2,663.59/3,995.52 = 1,019.56/x
3. Step 3: Cross multiply
   2,663.59x = 3,995.52 × 1,019.56
4. Step 4: Simplify right side
   2,663.59x = 4,073,672.37
5. Step 5: Solve for x
   x = 4,073,672.37/2,663.59
6. Step 6: Final answer
   x = 1,529.39