Finding the Fourth Proportional to 2,289.59, 3,428.79 and 2,067.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.59 : 3,428.79 = 2,067.73 : x
2. Step 2: Convert to fraction form
   2,289.59/3,428.79 = 2,067.73/x
3. Step 3: Cross multiply
   2,289.59x = 3,428.79 × 2,067.73
4. Step 4: Simplify right side
   2,289.59x = 7,089,803.37
5. Step 5: Solve for x
   x = 7,089,803.37/2,289.59
6. Step 6: Final answer
   x = 3,096.53