Finding the Fourth Proportional to 1,097.15, 1,514.35 and 625.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.15 : 1,514.35 = 625.31 : x
2. Step 2: Convert to fraction form
   1,097.15/1,514.35 = 625.31/x
3. Step 3: Cross multiply
   1,097.15x = 1,514.35 × 625.31
4. Step 4: Simplify right side
   1,097.15x = 946,938.20
5. Step 5: Solve for x
   x = 946,938.20/1,097.15
6. Step 6: Final answer
   x = 863.09