Finding the Fourth Proportional to 1,097.52, 1,514.56 and 631.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.52 : 1,514.56 = 631.76 : x
2. Step 2: Convert to fraction form
   1,097.52/1,514.56 = 631.76/x
3. Step 3: Cross multiply
   1,097.52x = 1,514.56 × 631.76
4. Step 4: Simplify right side
   1,097.52x = 956,838.43
5. Step 5: Solve for x
   x = 956,838.43/1,097.52
6. Step 6: Final answer
   x = 871.82