Finding the Fourth Proportional to 3,846.96, 5,308.89 and 2,275.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.96 : 5,308.89 = 2,275.08 : x
2. Step 2: Convert to fraction form
   3,846.96/5,308.89 = 2,275.08/x
3. Step 3: Cross multiply
   3,846.96x = 5,308.89 × 2,275.08
4. Step 4: Simplify right side
   3,846.96x = 12,078,149.46
5. Step 5: Solve for x
   x = 12,078,149.46/3,846.96
6. Step 6: Final answer
   x = 3,139.66