Finding the Fourth Proportional to 1,363.80, 1,881.98 and 774.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.80 : 1,881.98 = 774.33 : x
2. Step 2: Convert to fraction form
   1,363.80/1,881.98 = 774.33/x
3. Step 3: Cross multiply
   1,363.80x = 1,881.98 × 774.33
4. Step 4: Simplify right side
   1,363.80x = 1,457,269.90
5. Step 5: Solve for x
   x = 1,457,269.90/1,363.80
6. Step 6: Final answer
   x = 1,068.53