Finding the Fourth Proportional to 1,367.10, 1,886.50 and 807.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.10 : 1,886.50 = 807.54 : x
2. Step 2: Convert to fraction form
   1,367.10/1,886.50 = 807.54/x
3. Step 3: Cross multiply
   1,367.10x = 1,886.50 × 807.54
4. Step 4: Simplify right side
   1,367.10x = 1,523,424.21
5. Step 5: Solve for x
   x = 1,523,424.21/1,367.10
6. Step 6: Final answer
   x = 1,114.35