Finding the Fourth Proportional to 1,403.39, 1,936.71 and 773.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.39 : 1,936.71 = 773.96 : x
2. Step 2: Convert to fraction form
   1,403.39/1,936.71 = 773.96/x
3. Step 3: Cross multiply
   1,403.39x = 1,936.71 × 773.96
4. Step 4: Simplify right side
   1,403.39x = 1,498,926.39
5. Step 5: Solve for x
   x = 1,498,926.39/1,403.39
6. Step 6: Final answer
   x = 1,068.08