Finding the Fourth Proportional to 3,963.82, 5,470.37 and 2,195.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.82 : 5,470.37 = 2,195.59 : x
2. Step 2: Convert to fraction form
   3,963.82/5,470.37 = 2,195.59/x
3. Step 3: Cross multiply
   3,963.82x = 5,470.37 × 2,195.59
4. Step 4: Simplify right side
   3,963.82x = 12,010,689.67
5. Step 5: Solve for x
   x = 12,010,689.67/3,963.82
6. Step 6: Final answer
   x = 3,030.08