Finding the Fourth Proportional to 1,395.29, 1,925.51 and 805.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.29 : 1,925.51 = 805.82 : x
2. Step 2: Convert to fraction form
   1,395.29/1,925.51 = 805.82/x
3. Step 3: Cross multiply
   1,395.29x = 1,925.51 × 805.82
4. Step 4: Simplify right side
   1,395.29x = 1,551,600.81
5. Step 5: Solve for x
   x = 1,551,600.81/1,395.29
6. Step 6: Final answer
   x = 1,112.03