Finding the Fourth Proportional to 1,363.69, 1,881.78 and 774.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.69 : 1,881.78 = 774.22 : x
2. Step 2: Convert to fraction form
   1,363.69/1,881.78 = 774.22/x
3. Step 3: Cross multiply
   1,363.69x = 1,881.78 × 774.22
4. Step 4: Simplify right side
   1,363.69x = 1,456,911.71
5. Step 5: Solve for x
   x = 1,456,911.71/1,363.69
6. Step 6: Final answer
   x = 1,068.36