Finding the Fourth Proportional to 3,931.98, 5,894.31 and 2,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.98 : 5,894.31 = 2,081.53 : x
2. Step 2: Convert to fraction form
   3,931.98/5,894.31 = 2,081.53/x
3. Step 3: Cross multiply
   3,931.98x = 5,894.31 × 2,081.53
4. Step 4: Simplify right side
   3,931.98x = 12,269,198.27
5. Step 5: Solve for x
   x = 12,269,198.27/3,931.98
6. Step 6: Final answer
   x = 3,120.36