Finding the Fourth Proportional to 2,109.38, 2,910.14 and 1,322.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.38 : 2,910.14 = 1,322.06 : x
2. Step 2: Convert to fraction form
   2,109.38/2,910.14 = 1,322.06/x
3. Step 3: Cross multiply
   2,109.38x = 2,910.14 × 1,322.06
4. Step 4: Simplify right side
   2,109.38x = 3,847,379.69
5. Step 5: Solve for x
   x = 3,847,379.69/2,109.38
6. Step 6: Final answer
   x = 1,823.94