Finding the Fourth Proportional to 2,818.24, 4,227.72 and 1,087.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,818.24 : 4,227.72 = 1,087.36 : x
2. Step 2: Convert to fraction form
   2,818.24/4,227.72 = 1,087.36/x
3. Step 3: Cross multiply
   2,818.24x = 4,227.72 × 1,087.36
4. Step 4: Simplify right side
   2,818.24x = 4,597,053.62
5. Step 5: Solve for x
   x = 4,597,053.62/2,818.24
6. Step 6: Final answer
   x = 1,631.18