Finding the Fourth Proportional to 1,756.72, 2,424.06 and 970.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.72 : 2,424.06 = 970.79 : x
2. Step 2: Convert to fraction form
   1,756.72/2,424.06 = 970.79/x
3. Step 3: Cross multiply
   1,756.72x = 2,424.06 × 970.79
4. Step 4: Simplify right side
   1,756.72x = 2,353,241.09
5. Step 5: Solve for x
   x = 2,353,241.09/1,756.72
6. Step 6: Final answer
   x = 1,339.56