Finding the Fourth Proportional to 1,175.89, 1,622.56 and 671.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,175.89 : 1,622.56 = 671.67 : x
2. Step 2: Convert to fraction form
   1,175.89/1,622.56 = 671.67/x
3. Step 3: Cross multiply
   1,175.89x = 1,622.56 × 671.67
4. Step 4: Simplify right side
   1,175.89x = 1,089,824.88
5. Step 5: Solve for x
   x = 1,089,824.88/1,175.89
6. Step 6: Final answer
   x = 926.81