Finding the Fourth Proportional to 3,881.46, 5,356.89 and 2,309.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,881.46 : 5,356.89 = 2,309.52 : x
2. Step 2: Convert to fraction form
   3,881.46/5,356.89 = 2,309.52/x
3. Step 3: Cross multiply
   3,881.46x = 5,356.89 × 2,309.52
4. Step 4: Simplify right side
   3,881.46x = 12,371,844.59
5. Step 5: Solve for x
   x = 12,371,844.59/3,881.46
6. Step 6: Final answer
   x = 3,187.42