Finding the Fourth Proportional to 2,109.26, 3,165.83 and 1,069.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.26 : 3,165.83 = 1,069.99 : x
2. Step 2: Convert to fraction form
   2,109.26/3,165.83 = 1,069.99/x
3. Step 3: Cross multiply
   2,109.26x = 3,165.83 × 1,069.99
4. Step 4: Simplify right side
   2,109.26x = 3,387,397.19
5. Step 5: Solve for x
   x = 3,387,397.19/2,109.26
6. Step 6: Final answer
   x = 1,605.96