Finding the Fourth Proportional to 1,300.60, 1,794.84 and 776.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.60 : 1,794.84 = 776.68 : x
2. Step 2: Convert to fraction form
   1,300.60/1,794.84 = 776.68/x
3. Step 3: Cross multiply
   1,300.60x = 1,794.84 × 776.68
4. Step 4: Simplify right side
   1,300.60x = 1,394,016.33
5. Step 5: Solve for x
   x = 1,394,016.33/1,300.60
6. Step 6: Final answer
   x = 1,071.83