Finding the Fourth Proportional to 1,179.16, 1,627.46 and 682.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.16 : 1,627.46 = 682.12 : x
2. Step 2: Convert to fraction form
   1,179.16/1,627.46 = 682.12/x
3. Step 3: Cross multiply
   1,179.16x = 1,627.46 × 682.12
4. Step 4: Simplify right side
   1,179.16x = 1,110,123.02
5. Step 5: Solve for x
   x = 1,110,123.02/1,179.16
6. Step 6: Final answer
   x = 941.45