Finding the Fourth Proportional to 2,818.73, 3,889.78 and 1,559.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,818.73 : 3,889.78 = 1,559.75 : x
2. Step 2: Convert to fraction form
   2,818.73/3,889.78 = 1,559.75/x
3. Step 3: Cross multiply
   2,818.73x = 3,889.78 × 1,559.75
4. Step 4: Simplify right side
   2,818.73x = 6,067,061.01
5. Step 5: Solve for x
   x = 6,067,061.01/2,818.73
6. Step 6: Final answer
   x = 2,152.41