Finding the Fourth Proportional to 2,818.98, 3,890.30 and 1,873.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,818.98 : 3,890.30 = 1,873.14 : x
2. Step 2: Convert to fraction form
   2,818.98/3,890.30 = 1,873.14/x
3. Step 3: Cross multiply
   2,818.98x = 3,890.30 × 1,873.14
4. Step 4: Simplify right side
   2,818.98x = 7,287,076.54
5. Step 5: Solve for x
   x = 7,287,076.54/2,818.98
6. Step 6: Final answer
   x = 2,585.00