Finding the Fourth Proportional to 1,622.16, 2,241.27 and 1,435.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.16 : 2,241.27 = 1,435.86 : x
2. Step 2: Convert to fraction form
   1,622.16/2,241.27 = 1,435.86/x
3. Step 3: Cross multiply
   1,622.16x = 2,241.27 × 1,435.86
4. Step 4: Simplify right side
   1,622.16x = 3,218,149.94
5. Step 5: Solve for x
   x = 3,218,149.94/1,622.16
6. Step 6: Final answer
   x = 1,983.87