Finding the Fourth Proportional to 1,194.38, 1,648.24 and 670.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.38 : 1,648.24 = 670.42 : x
2. Step 2: Convert to fraction form
   1,194.38/1,648.24 = 670.42/x
3. Step 3: Cross multiply
   1,194.38x = 1,648.24 × 670.42
4. Step 4: Simplify right side
   1,194.38x = 1,105,013.06
5. Step 5: Solve for x
   x = 1,105,013.06/1,194.38
6. Step 6: Final answer
   x = 925.18