Finding the Fourth Proportional to 2,379.15, 3,283.61 and 1,818.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.15 : 3,283.61 = 1,818.54 : x
2. Step 2: Convert to fraction form
   2,379.15/3,283.61 = 1,818.54/x
3. Step 3: Cross multiply
   2,379.15x = 3,283.61 × 1,818.54
4. Step 4: Simplify right side
   2,379.15x = 5,971,367.04
5. Step 5: Solve for x
   x = 5,971,367.04/2,379.15
6. Step 6: Final answer
   x = 2,509.87