Finding the Fourth Proportional to 2,940.38, 4,412 and 1,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.38 : 4,412 = 1,296.72 : x
2. Step 2: Convert to fraction form
   2,940.38/4,412 = 1,296.72/x
3. Step 3: Cross multiply
   2,940.38x = 4,412 × 1,296.72
4. Step 4: Simplify right side
   2,940.38x = 5,721,128.64
5. Step 5: Solve for x
   x = 5,721,128.64/2,940.38
6. Step 6: Final answer
   x = 1,945.71