Finding the Fourth Proportional to 3,930.85, 5,892.09 and 2,057.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.85 : 5,892.09 = 2,057.59 : x
2. Step 2: Convert to fraction form
   3,930.85/5,892.09 = 2,057.59/x
3. Step 3: Cross multiply
   3,930.85x = 5,892.09 × 2,057.59
4. Step 4: Simplify right side
   3,930.85x = 12,123,505.46
5. Step 5: Solve for x
   x = 12,123,505.46/3,930.85
6. Step 6: Final answer
   x = 3,084.19