Finding the Fourth Proportional to 1,097.58, 1,513.98 and 699.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.58 : 1,513.98 = 699.24 : x
2. Step 2: Convert to fraction form
   1,097.58/1,513.98 = 699.24/x
3. Step 3: Cross multiply
   1,097.58x = 1,513.98 × 699.24
4. Step 4: Simplify right side
   1,097.58x = 1,058,635.38
5. Step 5: Solve for x
   x = 1,058,635.38/1,097.58
6. Step 6: Final answer
   x = 964.52