Finding the Fourth Proportional to 1,363.53, 1,881.57 and 774.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.53 : 1,881.57 = 774.06 : x
2. Step 2: Convert to fraction form
   1,363.53/1,881.57 = 774.06/x
3. Step 3: Cross multiply
   1,363.53x = 1,881.57 × 774.06
4. Step 4: Simplify right side
   1,363.53x = 1,456,448.07
5. Step 5: Solve for x
   x = 1,456,448.07/1,363.53
6. Step 6: Final answer
   x = 1,068.15