Finding the Fourth Proportional to 1,181.88, 1,630.98 and 650.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.88 : 1,630.98 = 650.76 : x
2. Step 2: Convert to fraction form
   1,181.88/1,630.98 = 650.76/x
3. Step 3: Cross multiply
   1,181.88x = 1,630.98 × 650.76
4. Step 4: Simplify right side
   1,181.88x = 1,061,376.54
5. Step 5: Solve for x
   x = 1,061,376.54/1,181.88
6. Step 6: Final answer
   x = 898.04