Finding the Fourth Proportional to 1,386.25, 1,913.03 and 796.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.25 : 1,913.03 = 796.82 : x
2. Step 2: Convert to fraction form
   1,386.25/1,913.03 = 796.82/x
3. Step 3: Cross multiply
   1,386.25x = 1,913.03 × 796.82
4. Step 4: Simplify right side
   1,386.25x = 1,524,340.56
5. Step 5: Solve for x
   x = 1,524,340.56/1,386.25
6. Step 6: Final answer
   x = 1,099.61