Finding the Fourth Proportional to 1,395.89, 1,925.54 and 806.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.89 : 1,925.54 = 806.32 : x
2. Step 2: Convert to fraction form
   1,395.89/1,925.54 = 806.32/x
3. Step 3: Cross multiply
   1,395.89x = 1,925.54 × 806.32
4. Step 4: Simplify right side
   1,395.89x = 1,552,597.38
5. Step 5: Solve for x
   x = 1,552,597.38/1,395.89
6. Step 6: Final answer
   x = 1,112.26