Finding the Fourth Proportional to 2,011.92, 3,018.24 and 1,087.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.92 : 3,018.24 = 1,087.96 : x
2. Step 2: Convert to fraction form
   2,011.92/3,018.24 = 1,087.96/x
3. Step 3: Cross multiply
   2,011.92x = 3,018.24 × 1,087.96
4. Step 4: Simplify right side
   2,011.92x = 3,283,724.39
5. Step 5: Solve for x
   x = 3,283,724.39/2,011.92
6. Step 6: Final answer
   x = 1,632.13