Finding the Fourth Proportional to 2,804.90, 3,872.82 and 1,810.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,804.90 : 3,872.82 = 1,810.76 : x
2. Step 2: Convert to fraction form
   2,804.90/3,872.82 = 1,810.76/x
3. Step 3: Cross multiply
   2,804.90x = 3,872.82 × 1,810.76
4. Step 4: Simplify right side
   2,804.90x = 7,012,747.54
5. Step 5: Solve for x
   x = 7,012,747.54/2,804.90
6. Step 6: Final answer
   x = 2,500.18