Finding the Fourth Proportional to 1,367.69, 1,887.03 and 807.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.69 : 1,887.03 = 807.91 : x
2. Step 2: Convert to fraction form
   1,367.69/1,887.03 = 807.91/x
3. Step 3: Cross multiply
   1,367.69x = 1,887.03 × 807.91
4. Step 4: Simplify right side
   1,367.69x = 1,524,545.69
5. Step 5: Solve for x
   x = 1,524,545.69/1,367.69
6. Step 6: Final answer
   x = 1,114.69