Finding the Fourth Proportional to 1,731.76, 2,596.72 and 756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.76 : 2,596.72 = 756.72 : x
2. Step 2: Convert to fraction form
   1,731.76/2,596.72 = 756.72/x
3. Step 3: Cross multiply
   1,731.76x = 2,596.72 × 756.72
4. Step 4: Simplify right side
   1,731.76x = 1,964,989.96
5. Step 5: Solve for x
   x = 1,964,989.96/1,731.76
6. Step 6: Final answer
   x = 1,134.68