Finding the Fourth Proportional to 1,363.99, 1,882.36 and 774.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.99 : 1,882.36 = 774.58 : x
2. Step 2: Convert to fraction form
   1,363.99/1,882.36 = 774.58/x
3. Step 3: Cross multiply
   1,363.99x = 1,882.36 × 774.58
4. Step 4: Simplify right side
   1,363.99x = 1,458,025.12
5. Step 5: Solve for x
   x = 1,458,025.12/1,363.99
6. Step 6: Final answer
   x = 1,068.95