Finding the Fourth Proportional to 2,164.69, 3,247.92 and 1,069.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.69 : 3,247.92 = 1,069.06 : x
2. Step 2: Convert to fraction form
   2,164.69/3,247.92 = 1,069.06/x
3. Step 3: Cross multiply
   2,164.69x = 3,247.92 × 1,069.06
4. Step 4: Simplify right side
   2,164.69x = 3,472,221.36
5. Step 5: Solve for x
   x = 3,472,221.36/2,164.69
6. Step 6: Final answer
   x = 1,604.03