Finding the Fourth Proportional to 1,147.89, 1,584.15 and 706.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.89 : 1,584.15 = 706.26 : x
2. Step 2: Convert to fraction form
   1,147.89/1,584.15 = 706.26/x
3. Step 3: Cross multiply
   1,147.89x = 1,584.15 × 706.26
4. Step 4: Simplify right side
   1,147.89x = 1,118,821.78
5. Step 5: Solve for x
   x = 1,118,821.78/1,147.89
6. Step 6: Final answer
   x = 974.68