Finding the Fourth Proportional to 1,364.22, 1,882.62 and 774.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.22 : 1,882.62 = 774.72 : x
2. Step 2: Convert to fraction form
   1,364.22/1,882.62 = 774.72/x
3. Step 3: Cross multiply
   1,364.22x = 1,882.62 × 774.72
4. Step 4: Simplify right side
   1,364.22x = 1,458,503.37
5. Step 5: Solve for x
   x = 1,458,503.37/1,364.22
6. Step 6: Final answer
   x = 1,069.11