Finding the Fourth Proportional to 1,395.42, 1,924.61 and 1,022.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.42 : 1,924.61 = 1,022.26 : x
2. Step 2: Convert to fraction form
   1,395.42/1,924.61 = 1,022.26/x
3. Step 3: Cross multiply
   1,395.42x = 1,924.61 × 1,022.26
4. Step 4: Simplify right side
   1,395.42x = 1,967,446.71
5. Step 5: Solve for x
   x = 1,967,446.71/1,395.42
6. Step 6: Final answer
   x = 1,409.94