Finding the Fourth Proportional to 2,818.86, 3,889.82 and 1,559.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,818.86 : 3,889.82 = 1,559.91 : x
2. Step 2: Convert to fraction form
   2,818.86/3,889.82 = 1,559.91/x
3. Step 3: Cross multiply
   2,818.86x = 3,889.82 × 1,559.91
4. Step 4: Simplify right side
   2,818.86x = 6,067,769.12
5. Step 5: Solve for x
   x = 6,067,769.12/2,818.86
6. Step 6: Final answer
   x = 2,152.56