Finding the Fourth Proportional to 1,146.33, 1,581.75 and 648.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.33 : 1,581.75 = 648.94 : x
2. Step 2: Convert to fraction form
   1,146.33/1,581.75 = 648.94/x
3. Step 3: Cross multiply
   1,146.33x = 1,581.75 × 648.94
4. Step 4: Simplify right side
   1,146.33x = 1,026,460.85
5. Step 5: Solve for x
   x = 1,026,460.85/1,146.33
6. Step 6: Final answer
   x = 895.43