Finding the Fourth Proportional to 1,112.56, 1,534.82 and 719.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.56 : 1,534.82 = 719.71 : x
2. Step 2: Convert to fraction form
   1,112.56/1,534.82 = 719.71/x
3. Step 3: Cross multiply
   1,112.56x = 1,534.82 × 719.71
4. Step 4: Simplify right side
   1,112.56x = 1,104,627.10
5. Step 5: Solve for x
   x = 1,104,627.10/1,112.56
6. Step 6: Final answer
   x = 992.87