Finding the Fourth Proportional to 1,433.69, 2,150.84 and 775.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.69 : 2,150.84 = 775.56 : x
2. Step 2: Convert to fraction form
   1,433.69/2,150.84 = 775.56/x
3. Step 3: Cross multiply
   1,433.69x = 2,150.84 × 775.56
4. Step 4: Simplify right side
   1,433.69x = 1,668,105.47
5. Step 5: Solve for x
   x = 1,668,105.47/1,433.69
6. Step 6: Final answer
   x = 1,163.50