Finding the Fourth Proportional to 2,969.98, 4,453.74 and 1,120.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.98 : 4,453.74 = 1,120.78 : x
2. Step 2: Convert to fraction form
   2,969.98/4,453.74 = 1,120.78/x
3. Step 3: Cross multiply
   2,969.98x = 4,453.74 × 1,120.78
4. Step 4: Simplify right side
   2,969.98x = 4,991,662.72
5. Step 5: Solve for x
   x = 4,991,662.72/2,969.98
6. Step 6: Final answer
   x = 1,680.71