Finding the Fourth Proportional to 1,087.94, 1,501.72 and 756.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.94 : 1,501.72 = 756.38 : x
2. Step 2: Convert to fraction form
   1,087.94/1,501.72 = 756.38/x
3. Step 3: Cross multiply
   1,087.94x = 1,501.72 × 756.38
4. Step 4: Simplify right side
   1,087.94x = 1,135,861.57
5. Step 5: Solve for x
   x = 1,135,861.57/1,087.94
6. Step 6: Final answer
   x = 1,044.05