Finding the Fourth Proportional to 1,196.64, 1,651.09 and 698.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.64 : 1,651.09 = 698.98 : x
2. Step 2: Convert to fraction form
   1,196.64/1,651.09 = 698.98/x
3. Step 3: Cross multiply
   1,196.64x = 1,651.09 × 698.98
4. Step 4: Simplify right side
   1,196.64x = 1,154,075.39
5. Step 5: Solve for x
   x = 1,154,075.39/1,196.64
6. Step 6: Final answer
   x = 964.43