Finding the Fourth Proportional to 1,146.70, 1,582.56 and 704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.70 : 1,582.56 = 704.72 : x
2. Step 2: Convert to fraction form
   1,146.70/1,582.56 = 704.72/x
3. Step 3: Cross multiply
   1,146.70x = 1,582.56 × 704.72
4. Step 4: Simplify right side
   1,146.70x = 1,115,261.68
5. Step 5: Solve for x
   x = 1,115,261.68/1,146.70
6. Step 6: Final answer
   x = 972.58