Finding the Fourth Proportional to 3,973.64, 5,485.46 and 2,381.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973.64 : 5,485.46 = 2,381.04 : x
2. Step 2: Convert to fraction form
   3,973.64/5,485.46 = 2,381.04/x
3. Step 3: Cross multiply
   3,973.64x = 5,485.46 × 2,381.04
4. Step 4: Simplify right side
   3,973.64x = 13,061,087.77
5. Step 5: Solve for x
   x = 13,061,087.77/3,973.64
6. Step 6: Final answer
   x = 3,286.94