Finding the Fourth Proportional to 1,363.06, 1,880.97 and 773.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.06 : 1,880.97 = 773.57 : x
2. Step 2: Convert to fraction form
   1,363.06/1,880.97 = 773.57/x
3. Step 3: Cross multiply
   1,363.06x = 1,880.97 × 773.57
4. Step 4: Simplify right side
   1,363.06x = 1,455,061.96
5. Step 5: Solve for x
   x = 1,455,061.96/1,363.06
6. Step 6: Final answer
   x = 1,067.50