Finding the Fourth Proportional to 1,148.21, 1,584.67 and 682.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,148.21 : 1,584.67 = 682.46 : x
2. Step 2: Convert to fraction form
   1,148.21/1,584.67 = 682.46/x
3. Step 3: Cross multiply
   1,148.21x = 1,584.67 × 682.46
4. Step 4: Simplify right side
   1,148.21x = 1,081,473.89
5. Step 5: Solve for x
   x = 1,081,473.89/1,148.21
6. Step 6: Final answer
   x = 941.88