Finding the Fourth Proportional to 1,976.72, 2,965.68 and 744.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.72 : 2,965.68 = 744.71 : x
2. Step 2: Convert to fraction form
   1,976.72/2,965.68 = 744.71/x
3. Step 3: Cross multiply
   1,976.72x = 2,965.68 × 744.71
4. Step 4: Simplify right side
   1,976.72x = 2,208,556.72
5. Step 5: Solve for x
   x = 2,208,556.72/1,976.72
6. Step 6: Final answer
   x = 1,117.29