Finding the Fourth Proportional to 1,181.82, 1,631.04 and 650.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.82 : 1,631.04 = 650.81 : x
2. Step 2: Convert to fraction form
   1,181.82/1,631.04 = 650.81/x
3. Step 3: Cross multiply
   1,181.82x = 1,631.04 × 650.81
4. Step 4: Simplify right side
   1,181.82x = 1,061,494.19
5. Step 5: Solve for x
   x = 1,061,494.19/1,181.82
6. Step 6: Final answer
   x = 898.19