Finding the Fourth Proportional to 1,386.26, 1,913.05 and 796.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.26 : 1,913.05 = 796.82 : x
2. Step 2: Convert to fraction form
   1,386.26/1,913.05 = 796.82/x
3. Step 3: Cross multiply
   1,386.26x = 1,913.05 × 796.82
4. Step 4: Simplify right side
   1,386.26x = 1,524,356.50
5. Step 5: Solve for x
   x = 1,524,356.50/1,386.26
6. Step 6: Final answer
   x = 1,099.62