Finding the Fourth Proportional to 1,174.03, 1,619.78 and 708.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.03 : 1,619.78 = 708.28 : x
2. Step 2: Convert to fraction form
   1,174.03/1,619.78 = 708.28/x
3. Step 3: Cross multiply
   1,174.03x = 1,619.78 × 708.28
4. Step 4: Simplify right side
   1,174.03x = 1,147,255.50
5. Step 5: Solve for x
   x = 1,147,255.50/1,174.03
6. Step 6: Final answer
   x = 977.20