Finding the Fourth Proportional to 2,821.29, 3,890.83 and 1,825.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.29 : 3,890.83 = 1,825.53 : x
2. Step 2: Convert to fraction form
   2,821.29/3,890.83 = 1,825.53/x
3. Step 3: Cross multiply
   2,821.29x = 3,890.83 × 1,825.53
4. Step 4: Simplify right side
   2,821.29x = 7,102,826.89
5. Step 5: Solve for x
   x = 7,102,826.89/2,821.29
6. Step 6: Final answer
   x = 2,517.58