Finding the Fourth Proportional to 1,194.57, 1,648.38 and 663.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.57 : 1,648.38 = 663.48 : x
2. Step 2: Convert to fraction form
   1,194.57/1,648.38 = 663.48/x
3. Step 3: Cross multiply
   1,194.57x = 1,648.38 × 663.48
4. Step 4: Simplify right side
   1,194.57x = 1,093,667.16
5. Step 5: Solve for x
   x = 1,093,667.16/1,194.57
6. Step 6: Final answer
   x = 915.53