Finding the Fourth Proportional to 1,940.75, 2,678.46 and 1,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.75 : 2,678.46 = 1,144.25 : x
2. Step 2: Convert to fraction form
   1,940.75/2,678.46 = 1,144.25/x
3. Step 3: Cross multiply
   1,940.75x = 2,678.46 × 1,144.25
4. Step 4: Simplify right side
   1,940.75x = 3,064,810.17
5. Step 5: Solve for x
   x = 3,064,810.17/1,940.75
6. Step 6: Final answer
   x = 1,579.19