Finding the Fourth Proportional to 1,942.61, 2,680.88 and 1,103.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.61 : 2,680.88 = 1,103.39 : x
2. Step 2: Convert to fraction form
   1,942.61/2,680.88 = 1,103.39/x
3. Step 3: Cross multiply
   1,942.61x = 2,680.88 × 1,103.39
4. Step 4: Simplify right side
   1,942.61x = 2,958,061.51
5. Step 5: Solve for x
   x = 2,958,061.51/1,942.61
6. Step 6: Final answer
   x = 1,522.72