Finding the Fourth Proportional to 1,952.71, 2,928.56 and 719.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,952.71 : 2,928.56 = 719.96 : x
2. Step 2: Convert to fraction form
   1,952.71/2,928.56 = 719.96/x
3. Step 3: Cross multiply
   1,952.71x = 2,928.56 × 719.96
4. Step 4: Simplify right side
   1,952.71x = 2,108,427.82
5. Step 5: Solve for x
   x = 2,108,427.82/1,952.71
6. Step 6: Final answer
   x = 1,079.75