Finding the Fourth Proportional to 1,120.46, 1,546.14 and 648.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120.46 : 1,546.14 = 648.26 : x
2. Step 2: Convert to fraction form
   1,120.46/1,546.14 = 648.26/x
3. Step 3: Cross multiply
   1,120.46x = 1,546.14 × 648.26
4. Step 4: Simplify right side
   1,120.46x = 1,002,300.72
5. Step 5: Solve for x
   x = 1,002,300.72/1,120.46
6. Step 6: Final answer
   x = 894.54