Finding the Fourth Proportional to 1,096.76, 1,513.70 and 704.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.76 : 1,513.70 = 704.20 : x
2. Step 2: Convert to fraction form
   1,096.76/1,513.70 = 704.20/x
3. Step 3: Cross multiply
   1,096.76x = 1,513.70 × 704.20
4. Step 4: Simplify right side
   1,096.76x = 1,065,947.54
5. Step 5: Solve for x
   x = 1,065,947.54/1,096.76
6. Step 6: Final answer
   x = 971.91