Finding the Fourth Proportional to 1,229.47, 1,696.56 and 698.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.47 : 1,696.56 = 698.32 : x
2. Step 2: Convert to fraction form
   1,229.47/1,696.56 = 698.32/x
3. Step 3: Cross multiply
   1,229.47x = 1,696.56 × 698.32
4. Step 4: Simplify right side
   1,229.47x = 1,184,741.78
5. Step 5: Solve for x
   x = 1,184,741.78/1,229.47
6. Step 6: Final answer
   x = 963.62