Finding the Fourth Proportional to 2,338.73, 3,507.72 and 779.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.73 : 3,507.72 = 779.82 : x
2. Step 2: Convert to fraction form
   2,338.73/3,507.72 = 779.82/x
3. Step 3: Cross multiply
   2,338.73x = 3,507.72 × 779.82
4. Step 4: Simplify right side
   2,338.73x = 2,735,390.21
5. Step 5: Solve for x
   x = 2,735,390.21/2,338.73
6. Step 6: Final answer
   x = 1,169.60