Finding the Fourth Proportional to 2,305.27, 3,457.89 and 1,072

Step by Step Solution

1. Step 1: Write the proportion equation
   2,305.27 : 3,457.89 = 1,072 : x
2. Step 2: Convert to fraction form
   2,305.27/3,457.89 = 1,072/x
3. Step 3: Cross multiply
   2,305.27x = 3,457.89 × 1,072
4. Step 4: Simplify right side
   2,305.27x = 3,706,858.08
5. Step 5: Solve for x
   x = 3,706,858.08/2,305.27
6. Step 6: Final answer
   x = 1,607.99