Finding the Fourth Proportional to 3,900.56, 5,847.37 and 1,434.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.56 : 5,847.37 = 1,434.79 : x
2. Step 2: Convert to fraction form
   3,900.56/5,847.37 = 1,434.79/x
3. Step 3: Cross multiply
   3,900.56x = 5,847.37 × 1,434.79
4. Step 4: Simplify right side
   3,900.56x = 8,389,729.80
5. Step 5: Solve for x
   x = 8,389,729.80/3,900.56
6. Step 6: Final answer
   x = 2,150.90