Finding the Fourth Proportional to 1,174.34, 1,620.59 and 676.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.34 : 1,620.59 = 676.97 : x
2. Step 2: Convert to fraction form
   1,174.34/1,620.59 = 676.97/x
3. Step 3: Cross multiply
   1,174.34x = 1,620.59 × 676.97
4. Step 4: Simplify right side
   1,174.34x = 1,097,079.32
5. Step 5: Solve for x
   x = 1,097,079.32/1,174.34
6. Step 6: Final answer
   x = 934.21