Finding the Fourth Proportional to 1,403.67, 1,936.71 and 843.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.67 : 1,936.71 = 843.96 : x
2. Step 2: Convert to fraction form
   1,403.67/1,936.71 = 843.96/x
3. Step 3: Cross multiply
   1,403.67x = 1,936.71 × 843.96
4. Step 4: Simplify right side
   1,403.67x = 1,634,505.77
5. Step 5: Solve for x
   x = 1,634,505.77/1,403.67
6. Step 6: Final answer
   x = 1,164.45