Finding the Fourth Proportional to 1,363.69, 1,881.72 and 774.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.69 : 1,881.72 = 774.10 : x
2. Step 2: Convert to fraction form
   1,363.69/1,881.72 = 774.10/x
3. Step 3: Cross multiply
   1,363.69x = 1,881.72 × 774.10
4. Step 4: Simplify right side
   1,363.69x = 1,456,639.45
5. Step 5: Solve for x
   x = 1,456,639.45/1,363.69
6. Step 6: Final answer
   x = 1,068.16