Finding the Fourth Proportional to 2,969.51, 4,453.89 and 778.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,969.51 : 4,453.89 = 778.41 : x
2. Step 2: Convert to fraction form
   2,969.51/4,453.89 = 778.41/x
3. Step 3: Cross multiply
   2,969.51x = 4,453.89 × 778.41
4. Step 4: Simplify right side
   2,969.51x = 3,466,949.60
5. Step 5: Solve for x
   x = 3,466,949.60/2,969.51
6. Step 6: Final answer
   x = 1,167.52