Finding the Fourth Proportional to 2,804.72, 3,871.39 and 1,810

Step by Step Solution

1. Step 1: Write the proportion equation
   2,804.72 : 3,871.39 = 1,810 : x
2. Step 2: Convert to fraction form
   2,804.72/3,871.39 = 1,810/x
3. Step 3: Cross multiply
   2,804.72x = 3,871.39 × 1,810
4. Step 4: Simplify right side
   2,804.72x = 7,007,215.90
5. Step 5: Solve for x
   x = 7,007,215.90/2,804.72
6. Step 6: Final answer
   x = 2,498.37