Finding the Fourth Proportional to 2,499.72, 3,749.63 and 650.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.72 : 3,749.63 = 650.72 : x
2. Step 2: Convert to fraction form
   2,499.72/3,749.63 = 650.72/x
3. Step 3: Cross multiply
   2,499.72x = 3,749.63 × 650.72
4. Step 4: Simplify right side
   2,499.72x = 2,439,965.35
5. Step 5: Solve for x
   x = 2,439,965.35/2,499.72
6. Step 6: Final answer
   x = 976.10