Finding the Fourth Proportional to 2,311.46, 3,189.81 and 1,263.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.46 : 3,189.81 = 1,263.52 : x
2. Step 2: Convert to fraction form
   2,311.46/3,189.81 = 1,263.52/x
3. Step 3: Cross multiply
   2,311.46x = 3,189.81 × 1,263.52
4. Step 4: Simplify right side
   2,311.46x = 4,030,397.46
5. Step 5: Solve for x
   x = 4,030,397.46/2,311.46
6. Step 6: Final answer
   x = 1,743.66