Finding the Fourth Proportional to 1,036.73, 1,429.59 and 770.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.73 : 1,429.59 = 770.75 : x
2. Step 2: Convert to fraction form
   1,036.73/1,429.59 = 770.75/x
3. Step 3: Cross multiply
   1,036.73x = 1,429.59 × 770.75
4. Step 4: Simplify right side
   1,036.73x = 1,101,855.26
5. Step 5: Solve for x
   x = 1,101,855.26/1,036.73
6. Step 6: Final answer
   x = 1,062.82