Finding the Fourth Proportional to 1,213.58, 1,674.82 and 682.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,213.58 : 1,674.82 = 682.52 : x
2. Step 2: Convert to fraction form
   1,213.58/1,674.82 = 682.52/x
3. Step 3: Cross multiply
   1,213.58x = 1,674.82 × 682.52
4. Step 4: Simplify right side
   1,213.58x = 1,143,090.63
5. Step 5: Solve for x
   x = 1,143,090.63/1,213.58
6. Step 6: Final answer
   x = 941.91