Finding the Fourth Proportional to 1,179.99, 1,628.17 and 682.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.99 : 1,628.17 = 682.62 : x
2. Step 2: Convert to fraction form
   1,179.99/1,628.17 = 682.62/x
3. Step 3: Cross multiply
   1,179.99x = 1,628.17 × 682.62
4. Step 4: Simplify right side
   1,179.99x = 1,111,421.41
5. Step 5: Solve for x
   x = 1,111,421.41/1,179.99
6. Step 6: Final answer
   x = 941.89