Finding the Fourth Proportional to 1,181.94, 1,630.89 and 739.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.94 : 1,630.89 = 739.68 : x
2. Step 2: Convert to fraction form
   1,181.94/1,630.89 = 739.68/x
3. Step 3: Cross multiply
   1,181.94x = 1,630.89 × 739.68
4. Step 4: Simplify right side
   1,181.94x = 1,206,336.72
5. Step 5: Solve for x
   x = 1,206,336.72/1,181.94
6. Step 6: Final answer
   x = 1,020.64