Finding the Fourth Proportional to 1,168.23, 1,748.72 and 874

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.23 : 1,748.72 = 874 : x
2. Step 2: Convert to fraction form
   1,168.23/1,748.72 = 874/x
3. Step 3: Cross multiply
   1,168.23x = 1,748.72 × 874
4. Step 4: Simplify right side
   1,168.23x = 1,528,381.28
5. Step 5: Solve for x
   x = 1,528,381.28/1,168.23
6. Step 6: Final answer
   x = 1,308.29