Finding the Fourth Proportional to 3,901.48, 5,383.63 and 2,308.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.48 : 5,383.63 = 2,308.19 : x
2. Step 2: Convert to fraction form
   3,901.48/5,383.63 = 2,308.19/x
3. Step 3: Cross multiply
   3,901.48x = 5,383.63 × 2,308.19
4. Step 4: Simplify right side
   3,901.48x = 12,426,429.39
5. Step 5: Solve for x
   x = 12,426,429.39/3,901.48
6. Step 6: Final answer
   x = 3,185.06