Finding the Fourth Proportional to 1,653.82, 2,479.55 and 775.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,653.82 : 2,479.55 = 775.83 : x
2. Step 2: Convert to fraction form
   1,653.82/2,479.55 = 775.83/x
3. Step 3: Cross multiply
   1,653.82x = 2,479.55 × 775.83
4. Step 4: Simplify right side
   1,653.82x = 1,923,700.75
5. Step 5: Solve for x
   x = 1,923,700.75/1,653.82
6. Step 6: Final answer
   x = 1,163.19