Finding the Fourth Proportional to 1,144.52, 1,714.38 and 971.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.52 : 1,714.38 = 971.96 : x
2. Step 2: Convert to fraction form
   1,144.52/1,714.38 = 971.96/x
3. Step 3: Cross multiply
   1,144.52x = 1,714.38 × 971.96
4. Step 4: Simplify right side
   1,144.52x = 1,666,308.78
5. Step 5: Solve for x
   x = 1,666,308.78/1,144.52
6. Step 6: Final answer
   x = 1,455.90