Finding the Fourth Proportional to 3,964.56, 5,947.16 and 1,331.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.56 : 5,947.16 = 1,331.96 : x
2. Step 2: Convert to fraction form
   3,964.56/5,947.16 = 1,331.96/x
3. Step 3: Cross multiply
   3,964.56x = 5,947.16 × 1,331.96
4. Step 4: Simplify right side
   3,964.56x = 7,921,379.23
5. Step 5: Solve for x
   x = 7,921,379.23/3,964.56
6. Step 6: Final answer
   x = 1,998.05