Finding the Fourth Proportional to 1,396.56, 1,927.24 and 775.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.56 : 1,927.24 = 775.52 : x
2. Step 2: Convert to fraction form
   1,396.56/1,927.24 = 775.52/x
3. Step 3: Cross multiply
   1,396.56x = 1,927.24 × 775.52
4. Step 4: Simplify right side
   1,396.56x = 1,494,613.16
5. Step 5: Solve for x
   x = 1,494,613.16/1,396.56
6. Step 6: Final answer
   x = 1,070.21