Finding the Fourth Proportional to 2,606.31, 3,889.89 and 2,253.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.31 : 3,889.89 = 2,253.35 : x
2. Step 2: Convert to fraction form
   2,606.31/3,889.89 = 2,253.35/x
3. Step 3: Cross multiply
   2,606.31x = 3,889.89 × 2,253.35
4. Step 4: Simplify right side
   2,606.31x = 8,765,293.36
5. Step 5: Solve for x
   x = 8,765,293.36/2,606.31
6. Step 6: Final answer
   x = 3,363.10