Finding the Fourth Proportional to 1,181.50, 1,630.32 and 683.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.50 : 1,630.32 = 683.76 : x
2. Step 2: Convert to fraction form
   1,181.50/1,630.32 = 683.76/x
3. Step 3: Cross multiply
   1,181.50x = 1,630.32 × 683.76
4. Step 4: Simplify right side
   1,181.50x = 1,114,747.60
5. Step 5: Solve for x
   x = 1,114,747.60/1,181.50
6. Step 6: Final answer
   x = 943.50