Finding the Fourth Proportional to 2,636.51, 3,955.04 and 905.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.51 : 3,955.04 = 905.27 : x
2. Step 2: Convert to fraction form
   2,636.51/3,955.04 = 905.27/x
3. Step 3: Cross multiply
   2,636.51x = 3,955.04 × 905.27
4. Step 4: Simplify right side
   2,636.51x = 3,580,379.06
5. Step 5: Solve for x
   x = 3,580,379.06/2,636.51
6. Step 6: Final answer
   x = 1,358.00