Finding the Fourth Proportional to 3,517.82, 5,276.37 and 920.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,517.82 : 5,276.37 = 920.42 : x
2. Step 2: Convert to fraction form
   3,517.82/5,276.37 = 920.42/x
3. Step 3: Cross multiply
   3,517.82x = 5,276.37 × 920.42
4. Step 4: Simplify right side
   3,517.82x = 4,856,476.48
5. Step 5: Solve for x
   x = 4,856,476.48/3,517.82
6. Step 6: Final answer
   x = 1,380.54