Finding the Fourth Proportional to 1,408.95, 1,944.24 and 779.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.95 : 1,944.24 = 779.37 : x
2. Step 2: Convert to fraction form
   1,408.95/1,944.24 = 779.37/x
3. Step 3: Cross multiply
   1,408.95x = 1,944.24 × 779.37
4. Step 4: Simplify right side
   1,408.95x = 1,515,282.33
5. Step 5: Solve for x
   x = 1,515,282.33/1,408.95
6. Step 6: Final answer
   x = 1,075.47