Finding the Fourth Proportional to 1,396.38, 1,927.00 and 775.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.38 : 1,927.00 = 775.38 : x
2. Step 2: Convert to fraction form
   1,396.38/1,927.00 = 775.38/x
3. Step 3: Cross multiply
   1,396.38x = 1,927.00 × 775.38
4. Step 4: Simplify right side
   1,396.38x = 1,494,145.69
5. Step 5: Solve for x
   x = 1,494,145.69/1,396.38
6. Step 6: Final answer
   x = 1,070.02