Finding the Fourth Proportional to 1,181.69, 1,630.73 and 650.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.69 : 1,630.73 = 650.57 : x
2. Step 2: Convert to fraction form
   1,181.69/1,630.73 = 650.57/x
3. Step 3: Cross multiply
   1,181.69x = 1,630.73 × 650.57
4. Step 4: Simplify right side
   1,181.69x = 1,060,904.84
5. Step 5: Solve for x
   x = 1,060,904.84/1,181.69
6. Step 6: Final answer
   x = 897.79