Finding the Fourth Proportional to 3,846.78, 5,770.56 and 1,249.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.78 : 5,770.56 = 1,249.80 : x
2. Step 2: Convert to fraction form
   3,846.78/5,770.56 = 1,249.80/x
3. Step 3: Cross multiply
   3,846.78x = 5,770.56 × 1,249.80
4. Step 4: Simplify right side
   3,846.78x = 7,212,045.89
5. Step 5: Solve for x
   x = 7,212,045.89/3,846.78
6. Step 6: Final answer
   x = 1,874.83