Finding the Fourth Proportional to 1,942.42, 2,680.55 and 1,058.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.42 : 2,680.55 = 1,058.22 : x
2. Step 2: Convert to fraction form
   1,942.42/2,680.55 = 1,058.22/x
3. Step 3: Cross multiply
   1,942.42x = 2,680.55 × 1,058.22
4. Step 4: Simplify right side
   1,942.42x = 2,836,611.62
5. Step 5: Solve for x
   x = 2,836,611.62/1,942.42
6. Step 6: Final answer
   x = 1,460.35