Finding the Fourth Proportional to 1,648.05, 2,274.36 and 940.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.05 : 2,274.36 = 940.00 : x
2. Step 2: Convert to fraction form
   1,648.05/2,274.36 = 940.00/x
3. Step 3: Cross multiply
   1,648.05x = 2,274.36 × 940.00
4. Step 4: Simplify right side
   1,648.05x = 2,137,887.03
5. Step 5: Solve for x
   x = 2,137,887.03/1,648.05
6. Step 6: Final answer
   x = 1,297.23