Finding the Fourth Proportional to 2,819.85, 3,892.23 and 1,825.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.85 : 3,892.23 = 1,825.10 : x
2. Step 2: Convert to fraction form
   2,819.85/3,892.23 = 1,825.10/x
3. Step 3: Cross multiply
   2,819.85x = 3,892.23 × 1,825.10
4. Step 4: Simplify right side
   2,819.85x = 7,103,718.70
5. Step 5: Solve for x
   x = 7,103,718.70/2,819.85
6. Step 6: Final answer
   x = 2,519.18