Finding the Fourth Proportional to 1,230.05, 1,697.46 and 706.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,230.05 : 1,697.46 = 706.25 : x
2. Step 2: Convert to fraction form
   1,230.05/1,697.46 = 706.25/x
3. Step 3: Cross multiply
   1,230.05x = 1,697.46 × 706.25
4. Step 4: Simplify right side
   1,230.05x = 1,198,832.89
5. Step 5: Solve for x
   x = 1,198,832.89/1,230.05
6. Step 6: Final answer
   x = 974.62