Finding the Fourth Proportional to 1,213.43, 1,674.53 and 682.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213.43 : 1,674.53 = 682.29 : x
2. Step 2: Convert to fraction form
   1,213.43/1,674.53 = 682.29/x
3. Step 3: Cross multiply
   1,213.43x = 1,674.53 × 682.29
4. Step 4: Simplify right side
   1,213.43x = 1,142,514.22
5. Step 5: Solve for x
   x = 1,142,514.22/1,213.43
6. Step 6: Final answer
   x = 941.56