Finding the Fourth Proportional to 2,805.52, 3,870.84 and 1,810.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,805.52 : 3,870.84 = 1,810.84 : x
2. Step 2: Convert to fraction form
   2,805.52/3,870.84 = 1,810.84/x
3. Step 3: Cross multiply
   2,805.52x = 3,870.84 × 1,810.84
4. Step 4: Simplify right side
   2,805.52x = 7,009,471.91
5. Step 5: Solve for x
   x = 7,009,471.91/2,805.52
6. Step 6: Final answer
   x = 2,498.46