Finding the Fourth Proportional to 6,789.56, 10,185.89 and 2,629.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,789.56 : 10,185.89 = 2,629.60 : x
2. Step 2: Convert to fraction form
   6,789.56/10,185.89 = 2,629.60/x
3. Step 3: Cross multiply
   6,789.56x = 10,185.89 × 2,629.60
4. Step 4: Simplify right side
   6,789.56x = 26,784,777.73
5. Step 5: Solve for x
   x = 26,784,777.73/6,789.56
6. Step 6: Final answer
   x = 3,945.00