Finding the Fourth Proportional to 1,179.31, 1,627.43 and 681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.31 : 1,627.43 = 681.94 : x
2. Step 2: Convert to fraction form
   1,179.31/1,627.43 = 681.94/x
3. Step 3: Cross multiply
   1,179.31x = 1,627.43 × 681.94
4. Step 4: Simplify right side
   1,179.31x = 1,109,799.08
5. Step 5: Solve for x
   x = 1,109,799.08/1,179.31
6. Step 6: Final answer
   x = 941.06