Finding the Fourth Proportional to 1,174.05, 1,619.72 and 676.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.05 : 1,619.72 = 676.42 : x
2. Step 2: Convert to fraction form
   1,174.05/1,619.72 = 676.42/x
3. Step 3: Cross multiply
   1,174.05x = 1,619.72 × 676.42
4. Step 4: Simplify right side
   1,174.05x = 1,095,603.57
5. Step 5: Solve for x
   x = 1,095,603.57/1,174.05
6. Step 6: Final answer
   x = 933.18