Finding the Fourth Proportional to 2,196.86, 3,279.62 and 2,119.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.86 : 3,279.62 = 2,119.95 : x
2. Step 2: Convert to fraction form
   2,196.86/3,279.62 = 2,119.95/x
3. Step 3: Cross multiply
   2,196.86x = 3,279.62 × 2,119.95
4. Step 4: Simplify right side
   2,196.86x = 6,952,619.82
5. Step 5: Solve for x
   x = 6,952,619.82/2,196.86
6. Step 6: Final answer
   x = 3,164.81