Finding the Fourth Proportional to 1,103.95, 1,523.61 and 684.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.95 : 1,523.61 = 684.42 : x
2. Step 2: Convert to fraction form
   1,103.95/1,523.61 = 684.42/x
3. Step 3: Cross multiply
   1,103.95x = 1,523.61 × 684.42
4. Step 4: Simplify right side
   1,103.95x = 1,042,796.30
5. Step 5: Solve for x
   x = 1,042,796.30/1,103.95
6. Step 6: Final answer
   x = 944.60