Finding the Fourth Proportional to 2,978.22, 4,469.41 and 2,955.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.22 : 4,469.41 = 2,955.17 : x
2. Step 2: Convert to fraction form
   2,978.22/4,469.41 = 2,955.17/x
3. Step 3: Cross multiply
   2,978.22x = 4,469.41 × 2,955.17
4. Step 4: Simplify right side
   2,978.22x = 13,207,881.22
5. Step 5: Solve for x
   x = 13,207,881.22/2,978.22
6. Step 6: Final answer
   x = 4,434.82