Finding the Fourth Proportional to 1,395.01, 1,925.45 and 805.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.01 : 1,925.45 = 805.89 : x
2. Step 2: Convert to fraction form
   1,395.01/1,925.45 = 805.89/x
3. Step 3: Cross multiply
   1,395.01x = 1,925.45 × 805.89
4. Step 4: Simplify right side
   1,395.01x = 1,551,700.90
5. Step 5: Solve for x
   x = 1,551,700.90/1,395.01
6. Step 6: Final answer
   x = 1,112.32