Finding the Fourth Proportional to 942.34, 1,300.59 and 648.28

Step by Step Solution

1. Step 1: Write the proportion equation
   942.34 : 1,300.59 = 648.28 : x
2. Step 2: Convert to fraction form
   942.34/1,300.59 = 648.28/x
3. Step 3: Cross multiply
   942.34x = 1,300.59 × 648.28
4. Step 4: Simplify right side
   942.34x = 843,146.49
5. Step 5: Solve for x
   x = 843,146.49/942.34
6. Step 6: Final answer
   x = 894.74