Finding the Fourth Proportional to 3,977.53, 5,967.27 and 2,809.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.53 : 5,967.27 = 2,809.82 : x
2. Step 2: Convert to fraction form
   3,977.53/5,967.27 = 2,809.82/x
3. Step 3: Cross multiply
   3,977.53x = 5,967.27 × 2,809.82
4. Step 4: Simplify right side
   3,977.53x = 16,766,969.51
5. Step 5: Solve for x
   x = 16,766,969.51/3,977.53
6. Step 6: Final answer
   x = 4,215.43