Finding the Fourth Proportional to 1,443.50, 1,993.66 and 976.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.50 : 1,993.66 = 976.94 : x
2. Step 2: Convert to fraction form
   1,443.50/1,993.66 = 976.94/x
3. Step 3: Cross multiply
   1,443.50x = 1,993.66 × 976.94
4. Step 4: Simplify right side
   1,443.50x = 1,947,686.20
5. Step 5: Solve for x
   x = 1,947,686.20/1,443.50
6. Step 6: Final answer
   x = 1,349.28