Finding the Fourth Proportional to 5,144.05, 7,711.46 and 1,856.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,144.05 : 7,711.46 = 1,856.37 : x
2. Step 2: Convert to fraction form
   5,144.05/7,711.46 = 1,856.37/x
3. Step 3: Cross multiply
   5,144.05x = 7,711.46 × 1,856.37
4. Step 4: Simplify right side
   5,144.05x = 14,315,313.72
5. Step 5: Solve for x
   x = 14,315,313.72/5,144.05
6. Step 6: Final answer
   x = 2,782.89