Finding the Fourth Proportional to 1,951.56, 2,926.40 and 719.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,951.56 : 2,926.40 = 719.55 : x
2. Step 2: Convert to fraction form
   1,951.56/2,926.40 = 719.55/x
3. Step 3: Cross multiply
   1,951.56x = 2,926.40 × 719.55
4. Step 4: Simplify right side
   1,951.56x = 2,105,687.52
5. Step 5: Solve for x
   x = 2,105,687.52/1,951.56
6. Step 6: Final answer
   x = 1,078.98