Finding the Fourth Proportional to 1,648.41, 2,274.82 and 1,018.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648.41 : 2,274.82 = 1,018.79 : x
2. Step 2: Convert to fraction form
   1,648.41/2,274.82 = 1,018.79/x
3. Step 3: Cross multiply
   1,648.41x = 2,274.82 × 1,018.79
4. Step 4: Simplify right side
   1,648.41x = 2,317,563.87
5. Step 5: Solve for x
   x = 2,317,563.87/1,648.41
6. Step 6: Final answer
   x = 1,405.94