Finding the Fourth Proportional to 1,181.49, 1,630.29 and 684.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.49 : 1,630.29 = 684.15 : x
2. Step 2: Convert to fraction form
   1,181.49/1,630.29 = 684.15/x
3. Step 3: Cross multiply
   1,181.49x = 1,630.29 × 684.15
4. Step 4: Simplify right side
   1,181.49x = 1,115,362.90
5. Step 5: Solve for x
   x = 1,115,362.90/1,181.49
6. Step 6: Final answer
   x = 944.03