Finding the Fourth Proportional to 2,813.61, 3,884.27 and 1,819.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,813.61 : 3,884.27 = 1,819.46 : x
2. Step 2: Convert to fraction form
   2,813.61/3,884.27 = 1,819.46/x
3. Step 3: Cross multiply
   2,813.61x = 3,884.27 × 1,819.46
4. Step 4: Simplify right side
   2,813.61x = 7,067,273.89
5. Step 5: Solve for x
   x = 7,067,273.89/2,813.61
6. Step 6: Final answer
   x = 2,511.82