Finding the Fourth Proportional to 3,500.75, 4,831.05 and 2,104.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,500.75 : 4,831.05 = 2,104.31 : x
2. Step 2: Convert to fraction form
   3,500.75/4,831.05 = 2,104.31/x
3. Step 3: Cross multiply
   3,500.75x = 4,831.05 × 2,104.31
4. Step 4: Simplify right side
   3,500.75x = 10,166,026.83
5. Step 5: Solve for x
   x = 10,166,026.83/3,500.75
6. Step 6: Final answer
   x = 2,903.96