Finding the Fourth Proportional to 1,383.16, 1,907.22 and 940.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.16 : 1,907.22 = 940.84 : x
2. Step 2: Convert to fraction form
   1,383.16/1,907.22 = 940.84/x
3. Step 3: Cross multiply
   1,383.16x = 1,907.22 × 940.84
4. Step 4: Simplify right side
   1,383.16x = 1,794,388.86
5. Step 5: Solve for x
   x = 1,794,388.86/1,383.16
6. Step 6: Final answer
   x = 1,297.31