Finding the Fourth Proportional to 1,395.61, 1,925.85 and 806.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.61 : 1,925.85 = 806.14 : x
2. Step 2: Convert to fraction form
   1,395.61/1,925.85 = 806.14/x
3. Step 3: Cross multiply
   1,395.61x = 1,925.85 × 806.14
4. Step 4: Simplify right side
   1,395.61x = 1,552,504.72
5. Step 5: Solve for x
   x = 1,552,504.72/1,395.61
6. Step 6: Final answer
   x = 1,112.42