Finding the Fourth Proportional to 2,963.87, 4,446.86 and 1,320.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,963.87 : 4,446.86 = 1,320.27 : x
2. Step 2: Convert to fraction form
   2,963.87/4,446.86 = 1,320.27/x
3. Step 3: Cross multiply
   2,963.87x = 4,446.86 × 1,320.27
4. Step 4: Simplify right side
   2,963.87x = 5,871,055.85
5. Step 5: Solve for x
   x = 5,871,055.85/2,963.87
6. Step 6: Final answer
   x = 1,980.87