Finding the Fourth Proportional to 2,816.32, 3,882.36 and 1,821.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,816.32 : 3,882.36 = 1,821.52 : x
2. Step 2: Convert to fraction form
   2,816.32/3,882.36 = 1,821.52/x
3. Step 3: Cross multiply
   2,816.32x = 3,882.36 × 1,821.52
4. Step 4: Simplify right side
   2,816.32x = 7,071,796.39
5. Step 5: Solve for x
   x = 7,071,796.39/2,816.32
6. Step 6: Final answer
   x = 2,511.01