Finding the Fourth Proportional to 3,984.50, 5,977.71 and 1,248.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.50 : 5,977.71 = 1,248.50 : x
2. Step 2: Convert to fraction form
   3,984.50/5,977.71 = 1,248.50/x
3. Step 3: Cross multiply
   3,984.50x = 5,977.71 × 1,248.50
4. Step 4: Simplify right side
   3,984.50x = 7,463,170.94
5. Step 5: Solve for x
   x = 7,463,170.94/3,984.50
6. Step 6: Final answer
   x = 1,873.05