Finding the Fourth Proportional to 1,298.03, 1,791.32 and 800.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.03 : 1,791.32 = 800.69 : x
2. Step 2: Convert to fraction form
   1,298.03/1,791.32 = 800.69/x
3. Step 3: Cross multiply
   1,298.03x = 1,791.32 × 800.69
4. Step 4: Simplify right side
   1,298.03x = 1,434,279.05
5. Step 5: Solve for x
   x = 1,434,279.05/1,298.03
6. Step 6: Final answer
   x = 1,104.97