Finding the Fourth Proportional to 3,311.69, 4,968.27 and 1,120.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,311.69 : 4,968.27 = 1,120.37 : x
2. Step 2: Convert to fraction form
   3,311.69/4,968.27 = 1,120.37/x
3. Step 3: Cross multiply
   3,311.69x = 4,968.27 × 1,120.37
4. Step 4: Simplify right side
   3,311.69x = 5,566,275.82
5. Step 5: Solve for x
   x = 5,566,275.82/3,311.69
6. Step 6: Final answer
   x = 1,680.80