Finding the Fourth Proportional to 1,363.96, 1,882.20 and 774.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.96 : 1,882.20 = 774.42 : x
2. Step 2: Convert to fraction form
   1,363.96/1,882.20 = 774.42/x
3. Step 3: Cross multiply
   1,363.96x = 1,882.20 × 774.42
4. Step 4: Simplify right side
   1,363.96x = 1,457,613.32
5. Step 5: Solve for x
   x = 1,457,613.32/1,363.96
6. Step 6: Final answer
   x = 1,068.66