Finding the Fourth Proportional to 2,057.85, 3,086.72 and 741.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.85 : 3,086.72 = 741.60 : x
2. Step 2: Convert to fraction form
   2,057.85/3,086.72 = 741.60/x
3. Step 3: Cross multiply
   2,057.85x = 3,086.72 × 741.60
4. Step 4: Simplify right side
   2,057.85x = 2,289,107.84
5. Step 5: Solve for x
   x = 2,289,107.84/2,057.85
6. Step 6: Final answer
   x = 1,112.38