Finding the Fourth Proportional to 2,949.39, 4,420.71 and 2,072.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,949.39 : 4,420.71 = 2,072.16 : x
2. Step 2: Convert to fraction form
   2,949.39/4,420.71 = 2,072.16/x
3. Step 3: Cross multiply
   2,949.39x = 4,420.71 × 2,072.16
4. Step 4: Simplify right side
   2,949.39x = 9,160,418.43
5. Step 5: Solve for x
   x = 9,160,418.43/2,949.39
6. Step 6: Final answer
   x = 3,105.87