Finding the Fourth Proportional to 2,469.54, 3,402.09 and 2,069.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.54 : 3,402.09 = 2,069.81 : x
2. Step 2: Convert to fraction form
   2,469.54/3,402.09 = 2,069.81/x
3. Step 3: Cross multiply
   2,469.54x = 3,402.09 × 2,069.81
4. Step 4: Simplify right side
   2,469.54x = 7,041,662.89
5. Step 5: Solve for x
   x = 7,041,662.89/2,469.54
6. Step 6: Final answer
   x = 2,851.41