Finding the Fourth Proportional to 1,253.82, 1,730.32 and 775.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253.82 : 1,730.32 = 775.38 : x
2. Step 2: Convert to fraction form
   1,253.82/1,730.32 = 775.38/x
3. Step 3: Cross multiply
   1,253.82x = 1,730.32 × 775.38
4. Step 4: Simplify right side
   1,253.82x = 1,341,655.52
5. Step 5: Solve for x
   x = 1,341,655.52/1,253.82
6. Step 6: Final answer
   x = 1,070.05