Finding the Fourth Proportional to 2,431.72, 3,647.76 and 700.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.72 : 3,647.76 = 700.48 : x
2. Step 2: Convert to fraction form
   2,431.72/3,647.76 = 700.48/x
3. Step 3: Cross multiply
   2,431.72x = 3,647.76 × 700.48
4. Step 4: Simplify right side
   2,431.72x = 2,555,182.92
5. Step 5: Solve for x
   x = 2,555,182.92/2,431.72
6. Step 6: Final answer
   x = 1,050.77