Finding the Fourth Proportional to 2,271.15, 3,405.20 and 1,036.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.15 : 3,405.20 = 1,036.89 : x
2. Step 2: Convert to fraction form
   2,271.15/3,405.20 = 1,036.89/x
3. Step 3: Cross multiply
   2,271.15x = 3,405.20 × 1,036.89
4. Step 4: Simplify right side
   2,271.15x = 3,530,812.64
5. Step 5: Solve for x
   x = 3,530,812.64/2,271.15
6. Step 6: Final answer
   x = 1,554.64