Finding the Fourth Proportional to 2,323.05, 3,199.89 and 2,169.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.05 : 3,199.89 = 2,169.96 : x
2. Step 2: Convert to fraction form
   2,323.05/3,199.89 = 2,169.96/x
3. Step 3: Cross multiply
   2,323.05x = 3,199.89 × 2,169.96
4. Step 4: Simplify right side
   2,323.05x = 6,943,633.30
5. Step 5: Solve for x
   x = 6,943,633.30/2,323.05
6. Step 6: Final answer
   x = 2,989.02