Finding the Fourth Proportional to 1,367.63, 1,887.03 and 807.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.63 : 1,887.03 = 807.72 : x
2. Step 2: Convert to fraction form
   1,367.63/1,887.03 = 807.72/x
3. Step 3: Cross multiply
   1,367.63x = 1,887.03 × 807.72
4. Step 4: Simplify right side
   1,367.63x = 1,524,184.80
5. Step 5: Solve for x
   x = 1,524,184.80/1,367.63
6. Step 6: Final answer
   x = 1,114.47