Finding the Fourth Proportional to 3,910.62, 5,860.83 and 2,982.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.62 : 5,860.83 = 2,982.78 : x
2. Step 2: Convert to fraction form
   3,910.62/5,860.83 = 2,982.78/x
3. Step 3: Cross multiply
   3,910.62x = 5,860.83 × 2,982.78
4. Step 4: Simplify right side
   3,910.62x = 17,481,566.51
5. Step 5: Solve for x
   x = 17,481,566.51/3,910.62
6. Step 6: Final answer
   x = 4,470.28