Finding the Fourth Proportional to 1,273.04, 1,756.18 and 800.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.04 : 1,756.18 = 800.71 : x
2. Step 2: Convert to fraction form
   1,273.04/1,756.18 = 800.71/x
3. Step 3: Cross multiply
   1,273.04x = 1,756.18 × 800.71
4. Step 4: Simplify right side
   1,273.04x = 1,406,190.89
5. Step 5: Solve for x
   x = 1,406,190.89/1,273.04
6. Step 6: Final answer
   x = 1,104.59