Finding the Fourth Proportional to 1,363.89, 1,882.17 and 774.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.89 : 1,882.17 = 774.48 : x
2. Step 2: Convert to fraction form
   1,363.89/1,882.17 = 774.48/x
3. Step 3: Cross multiply
   1,363.89x = 1,882.17 × 774.48
4. Step 4: Simplify right side
   1,363.89x = 1,457,703.02
5. Step 5: Solve for x
   x = 1,457,703.02/1,363.89
6. Step 6: Final answer
   x = 1,068.78