Finding the Fourth Proportional to 1,396.26, 1,926.99 and 892.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.26 : 1,926.99 = 892.57 : x
2. Step 2: Convert to fraction form
   1,396.26/1,926.99 = 892.57/x
3. Step 3: Cross multiply
   1,396.26x = 1,926.99 × 892.57
4. Step 4: Simplify right side
   1,396.26x = 1,719,973.46
5. Step 5: Solve for x
   x = 1,719,973.46/1,396.26
6. Step 6: Final answer
   x = 1,231.84