Finding the Fourth Proportional to 2,969.35, 4,453.92 and 778.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.35 : 4,453.92 = 778.06 : x
2. Step 2: Convert to fraction form
   2,969.35/4,453.92 = 778.06/x
3. Step 3: Cross multiply
   2,969.35x = 4,453.92 × 778.06
4. Step 4: Simplify right side
   2,969.35x = 3,465,417.00
5. Step 5: Solve for x
   x = 3,465,417.00/2,969.35
6. Step 6: Final answer
   x = 1,167.06