Finding the Fourth Proportional to 3,977.94, 5,485.74 and 2,384.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,977.94 : 5,485.74 = 2,384.34 : x
2. Step 2: Convert to fraction form
   3,977.94/5,485.74 = 2,384.34/x
3. Step 3: Cross multiply
   3,977.94x = 5,485.74 × 2,384.34
4. Step 4: Simplify right side
   3,977.94x = 13,079,869.31
5. Step 5: Solve for x
   x = 13,079,869.31/3,977.94
6. Step 6: Final answer
   x = 3,288.10