Finding the Fourth Proportional to 1,300.96, 1,795.20 and 776.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.96 : 1,795.20 = 776.92 : x
2. Step 2: Convert to fraction form
   1,300.96/1,795.20 = 776.92/x
3. Step 3: Cross multiply
   1,300.96x = 1,795.20 × 776.92
4. Step 4: Simplify right side
   1,300.96x = 1,394,726.78
5. Step 5: Solve for x
   x = 1,394,726.78/1,300.96
6. Step 6: Final answer
   x = 1,072.08