Finding the Fourth Proportional to 3,955.89, 5,922.90 and 2,979.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,955.89 : 5,922.90 = 2,979.03 : x
2. Step 2: Convert to fraction form
   3,955.89/5,922.90 = 2,979.03/x
3. Step 3: Cross multiply
   3,955.89x = 5,922.90 × 2,979.03
4. Step 4: Simplify right side
   3,955.89x = 17,644,496.79
5. Step 5: Solve for x
   x = 17,644,496.79/3,955.89
6. Step 6: Final answer
   x = 4,460.31