Finding the Fourth Proportional to 1,181.34, 1,630.32 and 684.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.34 : 1,630.32 = 684.12 : x
2. Step 2: Convert to fraction form
   1,181.34/1,630.32 = 684.12/x
3. Step 3: Cross multiply
   1,181.34x = 1,630.32 × 684.12
4. Step 4: Simplify right side
   1,181.34x = 1,115,334.52
5. Step 5: Solve for x
   x = 1,115,334.52/1,181.34
6. Step 6: Final answer
   x = 944.13