Finding the Fourth Proportional to 2,398.88, 3,311.73 and 1,804.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.88 : 3,311.73 = 1,804.70 : x
2. Step 2: Convert to fraction form
   2,398.88/3,311.73 = 1,804.70/x
3. Step 3: Cross multiply
   2,398.88x = 3,311.73 × 1,804.70
4. Step 4: Simplify right side
   2,398.88x = 5,976,662.57
5. Step 5: Solve for x
   x = 5,976,662.57/2,398.88
6. Step 6: Final answer
   x = 2,491.44