Finding the Fourth Proportional to 2,108.26, 2,909.27 and 1,164.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.26 : 2,909.27 = 1,164.05 : x
2. Step 2: Convert to fraction form
   2,108.26/2,909.27 = 1,164.05/x
3. Step 3: Cross multiply
   2,108.26x = 2,909.27 × 1,164.05
4. Step 4: Simplify right side
   2,108.26x = 3,386,535.74
5. Step 5: Solve for x
   x = 3,386,535.74/2,108.26
6. Step 6: Final answer
   x = 1,606.32