Finding the Fourth Proportional to 1,970.72, 2,956.56 and 738.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.72 : 2,956.56 = 738.48 : x
2. Step 2: Convert to fraction form
   1,970.72/2,956.56 = 738.48/x
3. Step 3: Cross multiply
   1,970.72x = 2,956.56 × 738.48
4. Step 4: Simplify right side
   1,970.72x = 2,183,360.43
5. Step 5: Solve for x
   x = 2,183,360.43/1,970.72
6. Step 6: Final answer
   x = 1,107.90