Finding the Fourth Proportional to 3,758.37, 5,185.83 and 2,431.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.37 : 5,185.83 = 2,431.89 : x
2. Step 2: Convert to fraction form
   3,758.37/5,185.83 = 2,431.89/x
3. Step 3: Cross multiply
   3,758.37x = 5,185.83 × 2,431.89
4. Step 4: Simplify right side
   3,758.37x = 12,611,396.69
5. Step 5: Solve for x
   x = 12,611,396.69/3,758.37
6. Step 6: Final answer
   x = 3,355.55