Finding the Fourth Proportional to 1,395.05, 1,922.81 and 1,158.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.05 : 1,922.81 = 1,158.24 : x
2. Step 2: Convert to fraction form
   1,395.05/1,922.81 = 1,158.24/x
3. Step 3: Cross multiply
   1,395.05x = 1,922.81 × 1,158.24
4. Step 4: Simplify right side
   1,395.05x = 2,227,069.66
5. Step 5: Solve for x
   x = 2,227,069.66/1,395.05
6. Step 6: Final answer
   x = 1,596.41