Finding the Fourth Proportional to 2,805.27, 3,870.50 and 1,810.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,805.27 : 3,870.50 = 1,810.59 : x
2. Step 2: Convert to fraction form
   2,805.27/3,870.50 = 1,810.59/x
3. Step 3: Cross multiply
   2,805.27x = 3,870.50 × 1,810.59
4. Step 4: Simplify right side
   2,805.27x = 7,007,879.54
5. Step 5: Solve for x
   x = 7,007,879.54/2,805.27
6. Step 6: Final answer
   x = 2,498.11