Finding the Fourth Proportional to 2,819.48, 3,890.18 and 1,823.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.48 : 3,890.18 = 1,823.55 : x
2. Step 2: Convert to fraction form
   2,819.48/3,890.18 = 1,823.55/x
3. Step 3: Cross multiply
   2,819.48x = 3,890.18 × 1,823.55
4. Step 4: Simplify right side
   2,819.48x = 7,093,950.28
5. Step 5: Solve for x
   x = 7,093,950.28/2,819.48
6. Step 6: Final answer
   x = 2,516.05