Finding the Fourth Proportional to 1,942.91, 2,914.31 and 847.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.91 : 2,914.31 = 847.25 : x
2. Step 2: Convert to fraction form
   1,942.91/2,914.31 = 847.25/x
3. Step 3: Cross multiply
   1,942.91x = 2,914.31 × 847.25
4. Step 4: Simplify right side
   1,942.91x = 2,469,136.69
5. Step 5: Solve for x
   x = 2,469,136.69/1,942.91
6. Step 6: Final answer
   x = 1,270.85