Finding the Fourth Proportional to 1,367.18, 1,887.42 and 843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.18 : 1,887.42 = 843.50 : x
2. Step 2: Convert to fraction form
   1,367.18/1,887.42 = 843.50/x
3. Step 3: Cross multiply
   1,367.18x = 1,887.42 × 843.50
4. Step 4: Simplify right side
   1,367.18x = 1,592,038.77
5. Step 5: Solve for x
   x = 1,592,038.77/1,367.18
6. Step 6: Final answer
   x = 1,164.47