Finding the Fourth Proportional to 1,395.59, 1,925.78 and 806.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.59 : 1,925.78 = 806.04 : x
2. Step 2: Convert to fraction form
   1,395.59/1,925.78 = 806.04/x
3. Step 3: Cross multiply
   1,395.59x = 1,925.78 × 806.04
4. Step 4: Simplify right side
   1,395.59x = 1,552,251.68
5. Step 5: Solve for x
   x = 1,552,251.68/1,395.59
6. Step 6: Final answer
   x = 1,112.26