Finding the Fourth Proportional to 3,799.17, 5,705.79 and 3,107.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,799.17 : 5,705.79 = 3,107.31 : x
2. Step 2: Convert to fraction form
   3,799.17/5,705.79 = 3,107.31/x
3. Step 3: Cross multiply
   3,799.17x = 5,705.79 × 3,107.31
4. Step 4: Simplify right side
   3,799.17x = 17,729,658.32
5. Step 5: Solve for x
   x = 17,729,658.32/3,799.17
6. Step 6: Final answer
   x = 4,666.72