Finding the Fourth Proportional to 1,363.05, 1,881.09 and 773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.05 : 1,881.09 = 773.55 : x
2. Step 2: Convert to fraction form
   1,363.05/1,881.09 = 773.55/x
3. Step 3: Cross multiply
   1,363.05x = 1,881.09 × 773.55
4. Step 4: Simplify right side
   1,363.05x = 1,455,117.17
5. Step 5: Solve for x
   x = 1,455,117.17/1,363.05
6. Step 6: Final answer
   x = 1,067.54