Finding the Fourth Proportional to 1,367.50, 1,887.78 and 843.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.50 : 1,887.78 = 843.84 : x
2. Step 2: Convert to fraction form
   1,367.50/1,887.78 = 843.84/x
3. Step 3: Cross multiply
   1,367.50x = 1,887.78 × 843.84
4. Step 4: Simplify right side
   1,367.50x = 1,592,984.28
5. Step 5: Solve for x
   x = 1,592,984.28/1,367.50
6. Step 6: Final answer
   x = 1,164.89