Finding the Fourth Proportional to 3,938.76, 5,906.42 and 2,089.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.76 : 5,906.42 = 2,089.46 : x
2. Step 2: Convert to fraction form
   3,938.76/5,906.42 = 2,089.46/x
3. Step 3: Cross multiply
   3,938.76x = 5,906.42 × 2,089.46
4. Step 4: Simplify right side
   3,938.76x = 12,341,240.49
5. Step 5: Solve for x
   x = 12,341,240.49/3,938.76
6. Step 6: Final answer
   x = 3,133.28