Finding the Fourth Proportional to 4,913.59, 6,780.83 and 2,789.06

Step by Step Solution

1. Step 1: Write the proportion equation
   4,913.59 : 6,780.83 = 2,789.06 : x
2. Step 2: Convert to fraction form
   4,913.59/6,780.83 = 2,789.06/x
3. Step 3: Cross multiply
   4,913.59x = 6,780.83 × 2,789.06
4. Step 4: Simplify right side
   4,913.59x = 18,912,141.72
5. Step 5: Solve for x
   x = 18,912,141.72/4,913.59
6. Step 6: Final answer
   x = 3,848.95