Finding the Fourth Proportional to 3,933.72, 5,895.72 and 1,986.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.72 : 5,895.72 = 1,986.48 : x
2. Step 2: Convert to fraction form
   3,933.72/5,895.72 = 1,986.48/x
3. Step 3: Cross multiply
   3,933.72x = 5,895.72 × 1,986.48
4. Step 4: Simplify right side
   3,933.72x = 11,711,729.87
5. Step 5: Solve for x
   x = 11,711,729.87/3,933.72
6. Step 6: Final answer
   x = 2,977.27