Finding the Fourth Proportional to 1,976.69, 2,964.42 and 743.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.69 : 2,964.42 = 743.87 : x
2. Step 2: Convert to fraction form
   1,976.69/2,964.42 = 743.87/x
3. Step 3: Cross multiply
   1,976.69x = 2,964.42 × 743.87
4. Step 4: Simplify right side
   1,976.69x = 2,205,128.28
5. Step 5: Solve for x
   x = 2,205,128.28/1,976.69
6. Step 6: Final answer
   x = 1,115.57