Finding the Fourth Proportional to 1,403.01, 1,936.05 and 773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.01 : 1,936.05 = 773.55 : x
2. Step 2: Convert to fraction form
   1,403.01/1,936.05 = 773.55/x
3. Step 3: Cross multiply
   1,403.01x = 1,936.05 × 773.55
4. Step 4: Simplify right side
   1,403.01x = 1,497,631.48
5. Step 5: Solve for x
   x = 1,497,631.48/1,403.01
6. Step 6: Final answer
   x = 1,067.44