Finding the Fourth Proportional to 1,622.34, 2,434.31 and 1,005.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,622.34 : 2,434.31 = 1,005.89 : x
2. Step 2: Convert to fraction form
   1,622.34/2,434.31 = 1,005.89/x
3. Step 3: Cross multiply
   1,622.34x = 2,434.31 × 1,005.89
4. Step 4: Simplify right side
   1,622.34x = 2,448,630.88
5. Step 5: Solve for x
   x = 2,448,630.88/1,622.34
6. Step 6: Final answer
   x = 1,509.32