Finding the Fourth Proportional to 3,679.68, 5,077.83 and 2,107.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,679.68 : 5,077.83 = 2,107.47 : x
2. Step 2: Convert to fraction form
   3,679.68/5,077.83 = 2,107.47/x
3. Step 3: Cross multiply
   3,679.68x = 5,077.83 × 2,107.47
4. Step 4: Simplify right side
   3,679.68x = 10,701,401.33
5. Step 5: Solve for x
   x = 10,701,401.33/3,679.68
6. Step 6: Final answer
   x = 2,908.24