Finding the Fourth Proportional to 1,775.82, 2,450.53 and 979.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,775.82 : 2,450.53 = 979.09 : x
2. Step 2: Convert to fraction form
   1,775.82/2,450.53 = 979.09/x
3. Step 3: Cross multiply
   1,775.82x = 2,450.53 × 979.09
4. Step 4: Simplify right side
   1,775.82x = 2,399,289.42
5. Step 5: Solve for x
   x = 2,399,289.42/1,775.82
6. Step 6: Final answer
   x = 1,351.09