Finding the Fourth Proportional to 3,895.50, 5,375.79 and 2,239.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.50 : 5,375.79 = 2,239.50 : x
2. Step 2: Convert to fraction form
   3,895.50/5,375.79 = 2,239.50/x
3. Step 3: Cross multiply
   3,895.50x = 5,375.79 × 2,239.50
4. Step 4: Simplify right side
   3,895.50x = 12,039,081.71
5. Step 5: Solve for x
   x = 12,039,081.71/3,895.50
6. Step 6: Final answer
   x = 3,090.51