Finding the Fourth Proportional to 1,363.82, 1,881.96 and 774.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.82 : 1,881.96 = 774.50 : x
2. Step 2: Convert to fraction form
   1,363.82/1,881.96 = 774.50/x
3. Step 3: Cross multiply
   1,363.82x = 1,881.96 × 774.50
4. Step 4: Simplify right side
   1,363.82x = 1,457,578.02
5. Step 5: Solve for x
   x = 1,457,578.02/1,363.82
6. Step 6: Final answer
   x = 1,068.75