Finding the Fourth Proportional to 1,648.24, 2,274.82 and 940.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.24 : 2,274.82 = 940.08 : x
2. Step 2: Convert to fraction form
   1,648.24/2,274.82 = 940.08/x
3. Step 3: Cross multiply
   1,648.24x = 2,274.82 × 940.08
4. Step 4: Simplify right side
   1,648.24x = 2,138,513.96
5. Step 5: Solve for x
   x = 2,138,513.96/1,648.24
6. Step 6: Final answer
   x = 1,297.45