Finding the Fourth Proportional to 1,228.42, 1,695.23 and 704.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228.42 : 1,695.23 = 704.46 : x
2. Step 2: Convert to fraction form
   1,228.42/1,695.23 = 704.46/x
3. Step 3: Cross multiply
   1,228.42x = 1,695.23 × 704.46
4. Step 4: Simplify right side
   1,228.42x = 1,194,209.73
5. Step 5: Solve for x
   x = 1,194,209.73/1,228.42
6. Step 6: Final answer
   x = 972.15