Finding the Fourth Proportional to 1,303.35, 1,798.42 and 806.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.35 : 1,798.42 = 806.15 : x
2. Step 2: Convert to fraction form
   1,303.35/1,798.42 = 806.15/x
3. Step 3: Cross multiply
   1,303.35x = 1,798.42 × 806.15
4. Step 4: Simplify right side
   1,303.35x = 1,449,796.28
5. Step 5: Solve for x
   x = 1,449,796.28/1,303.35
6. Step 6: Final answer
   x = 1,112.36