Finding the Fourth Proportional to 1,194.50, 1,648.31 and 670.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,194.50 : 1,648.31 = 670.61 : x
2. Step 2: Convert to fraction form
   1,194.50/1,648.31 = 670.61/x
3. Step 3: Cross multiply
   1,194.50x = 1,648.31 × 670.61
4. Step 4: Simplify right side
   1,194.50x = 1,105,361.57
5. Step 5: Solve for x
   x = 1,105,361.57/1,194.50
6. Step 6: Final answer
   x = 925.38