Finding the Fourth Proportional to 2,150.90, 3,224.32 and 1,622.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.90 : 3,224.32 = 1,622.99 : x
2. Step 2: Convert to fraction form
   2,150.90/3,224.32 = 1,622.99/x
3. Step 3: Cross multiply
   2,150.90x = 3,224.32 × 1,622.99
4. Step 4: Simplify right side
   2,150.90x = 5,233,039.12
5. Step 5: Solve for x
   x = 5,233,039.12/2,150.90
6. Step 6: Final answer
   x = 2,432.95