Finding the Fourth Proportional to 2,072.34, 3,105.42 and 1,634.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.34 : 3,105.42 = 1,634.58 : x
2. Step 2: Convert to fraction form
   2,072.34/3,105.42 = 1,634.58/x
3. Step 3: Cross multiply
   2,072.34x = 3,105.42 × 1,634.58
4. Step 4: Simplify right side
   2,072.34x = 5,076,057.42
5. Step 5: Solve for x
   x = 5,076,057.42/2,072.34
6. Step 6: Final answer
   x = 2,449.43