Finding the Fourth Proportional to 1,097.31, 1,514.42 and 625.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.31 : 1,514.42 = 625.35 : x
2. Step 2: Convert to fraction form
   1,097.31/1,514.42 = 625.35/x
3. Step 3: Cross multiply
   1,097.31x = 1,514.42 × 625.35
4. Step 4: Simplify right side
   1,097.31x = 947,042.55
5. Step 5: Solve for x
   x = 947,042.55/1,097.31
6. Step 6: Final answer
   x = 863.06