Finding the Fourth Proportional to 1,310.67, 1,808.72 and 751.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310.67 : 1,808.72 = 751.33 : x
2. Step 2: Convert to fraction form
   1,310.67/1,808.72 = 751.33/x
3. Step 3: Cross multiply
   1,310.67x = 1,808.72 × 751.33
4. Step 4: Simplify right side
   1,310.67x = 1,358,936.55
5. Step 5: Solve for x
   x = 1,358,936.55/1,310.67
6. Step 6: Final answer
   x = 1,036.83