Finding the Fourth Proportional to 1,036.51, 1,429.30 and 800.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.51 : 1,429.30 = 800.49 : x
2. Step 2: Convert to fraction form
   1,036.51/1,429.30 = 800.49/x
3. Step 3: Cross multiply
   1,036.51x = 1,429.30 × 800.49
4. Step 4: Simplify right side
   1,036.51x = 1,144,146.72
5. Step 5: Solve for x
   x = 1,144,146.72/1,036.51
6. Step 6: Final answer
   x = 1,103.85