Finding the Fourth Proportional to 3,757.46, 5,185.18 and 2,078.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,757.46 : 5,185.18 = 2,078.81 : x
2. Step 2: Convert to fraction form
   3,757.46/5,185.18 = 2,078.81/x
3. Step 3: Cross multiply
   3,757.46x = 5,185.18 × 2,078.81
4. Step 4: Simplify right side
   3,757.46x = 10,779,000.15
5. Step 5: Solve for x
   x = 10,779,000.15/3,757.46
6. Step 6: Final answer
   x = 2,868.70