Finding the Fourth Proportional to 1,164.88, 1,606.80 and 699.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.88 : 1,606.80 = 699.04 : x
2. Step 2: Convert to fraction form
   1,164.88/1,606.80 = 699.04/x
3. Step 3: Cross multiply
   1,164.88x = 1,606.80 × 699.04
4. Step 4: Simplify right side
   1,164.88x = 1,123,217.47
5. Step 5: Solve for x
   x = 1,123,217.47/1,164.88
6. Step 6: Final answer
   x = 964.23