Finding the Fourth Proportional to 1,371.56, 1,892.29 and 773.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.56 : 1,892.29 = 773.99 : x
2. Step 2: Convert to fraction form
   1,371.56/1,892.29 = 773.99/x
3. Step 3: Cross multiply
   1,371.56x = 1,892.29 × 773.99
4. Step 4: Simplify right side
   1,371.56x = 1,464,604.08
5. Step 5: Solve for x
   x = 1,464,604.08/1,371.56
6. Step 6: Final answer
   x = 1,067.84