Finding the Fourth Proportional to 3,144.18, 4,715.91 and 835.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.18 : 4,715.91 = 835.86 : x
2. Step 2: Convert to fraction form
   3,144.18/4,715.91 = 835.86/x
3. Step 3: Cross multiply
   3,144.18x = 4,715.91 × 835.86
4. Step 4: Simplify right side
   3,144.18x = 3,941,840.53
5. Step 5: Solve for x
   x = 3,941,840.53/3,144.18
6. Step 6: Final answer
   x = 1,253.69