Finding the Fourth Proportional to 1,068.69, 1,474.56 and 774.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.69 : 1,474.56 = 774.39 : x
2. Step 2: Convert to fraction form
   1,068.69/1,474.56 = 774.39/x
3. Step 3: Cross multiply
   1,068.69x = 1,474.56 × 774.39
4. Step 4: Simplify right side
   1,068.69x = 1,141,884.52
5. Step 5: Solve for x
   x = 1,141,884.52/1,068.69
6. Step 6: Final answer
   x = 1,068.49