Finding the Fourth Proportional to 1,940.38, 2,911.33 and 1,118.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.38 : 2,911.33 = 1,118.21 : x
2. Step 2: Convert to fraction form
   1,940.38/2,911.33 = 1,118.21/x
3. Step 3: Cross multiply
   1,940.38x = 2,911.33 × 1,118.21
4. Step 4: Simplify right side
   1,940.38x = 3,255,463.59
5. Step 5: Solve for x
   x = 3,255,463.59/1,940.38
6. Step 6: Final answer
   x = 1,677.75