Finding the Fourth Proportional to 1,097.20, 1,513.56 and 704.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.20 : 1,513.56 = 704.62 : x
2. Step 2: Convert to fraction form
   1,097.20/1,513.56 = 704.62/x
3. Step 3: Cross multiply
   1,097.20x = 1,513.56 × 704.62
4. Step 4: Simplify right side
   1,097.20x = 1,066,484.65
5. Step 5: Solve for x
   x = 1,066,484.65/1,097.20
6. Step 6: Final answer
   x = 972.01