Finding the Fourth Proportional to 2,475.30, 3,711.69 and 743.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,475.30 : 3,711.69 = 743.70 : x
2. Step 2: Convert to fraction form
   2,475.30/3,711.69 = 743.70/x
3. Step 3: Cross multiply
   2,475.30x = 3,711.69 × 743.70
4. Step 4: Simplify right side
   2,475.30x = 2,760,383.85
5. Step 5: Solve for x
   x = 2,760,383.85/2,475.30
6. Step 6: Final answer
   x = 1,115.17