Finding the Fourth Proportional to 2,333.86, 3,216 and 2,169.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.86 : 3,216 = 2,169.82 : x
2. Step 2: Convert to fraction form
   2,333.86/3,216 = 2,169.82/x
3. Step 3: Cross multiply
   2,333.86x = 3,216 × 2,169.82
4. Step 4: Simplify right side
   2,333.86x = 6,978,141.12
5. Step 5: Solve for x
   x = 6,978,141.12/2,333.86
6. Step 6: Final answer
   x = 2,989.96