Finding the Fourth Proportional to 3,895.85, 5,843.82 and 1,298.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,895.85 : 5,843.82 = 1,298.78 : x
2. Step 2: Convert to fraction form
   3,895.85/5,843.82 = 1,298.78/x
3. Step 3: Cross multiply
   3,895.85x = 5,843.82 × 1,298.78
4. Step 4: Simplify right side
   3,895.85x = 7,589,847.90
5. Step 5: Solve for x
   x = 7,589,847.90/3,895.85
6. Step 6: Final answer
   x = 1,948.19