Finding the Fourth Proportional to 1,395.41, 1,925.96 and 805.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.41 : 1,925.96 = 805.87 : x
2. Step 2: Convert to fraction form
   1,395.41/1,925.96 = 805.87/x
3. Step 3: Cross multiply
   1,395.41x = 1,925.96 × 805.87
4. Step 4: Simplify right side
   1,395.41x = 1,552,064.54
5. Step 5: Solve for x
   x = 1,552,064.54/1,395.41
6. Step 6: Final answer
   x = 1,112.26