Finding the Fourth Proportional to 1,355.72, 1,871.34 and 796.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.72 : 1,871.34 = 796.18 : x
2. Step 2: Convert to fraction form
   1,355.72/1,871.34 = 796.18/x
3. Step 3: Cross multiply
   1,355.72x = 1,871.34 × 796.18
4. Step 4: Simplify right side
   1,355.72x = 1,489,918.80
5. Step 5: Solve for x
   x = 1,489,918.80/1,355.72
6. Step 6: Final answer
   x = 1,098.99