Finding the Fourth Proportional to 3,757.42, 5,185.20 and 2,078.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,757.42 : 5,185.20 = 2,078.92 : x
2. Step 2: Convert to fraction form
   3,757.42/5,185.20 = 2,078.92/x
3. Step 3: Cross multiply
   3,757.42x = 5,185.20 × 2,078.92
4. Step 4: Simplify right side
   3,757.42x = 10,779,615.98
5. Step 5: Solve for x
   x = 10,779,615.98/3,757.42
6. Step 6: Final answer
   x = 2,868.89