Finding the Fourth Proportional to 1,942.78, 2,680.94 and 1,103.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.78 : 2,680.94 = 1,103.47 : x
2. Step 2: Convert to fraction form
   1,942.78/2,680.94 = 1,103.47/x
3. Step 3: Cross multiply
   1,942.78x = 2,680.94 × 1,103.47
4. Step 4: Simplify right side
   1,942.78x = 2,958,336.86
5. Step 5: Solve for x
   x = 2,958,336.86/1,942.78
6. Step 6: Final answer
   x = 1,522.73