Finding the Fourth Proportional to 1,104.21, 1,523.23 and 684.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.21 : 1,523.23 = 684.43 : x
2. Step 2: Convert to fraction form
   1,104.21/1,523.23 = 684.43/x
3. Step 3: Cross multiply
   1,104.21x = 1,523.23 × 684.43
4. Step 4: Simplify right side
   1,104.21x = 1,042,536.69
5. Step 5: Solve for x
   x = 1,042,536.69/1,104.21
6. Step 6: Final answer
   x = 944.15