Finding the Fourth Proportional to 1,097.82, 1,515.06 and 625.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.82 : 1,515.06 = 625.56 : x
2. Step 2: Convert to fraction form
   1,097.82/1,515.06 = 625.56/x
3. Step 3: Cross multiply
   1,097.82x = 1,515.06 × 625.56
4. Step 4: Simplify right side
   1,097.82x = 947,760.93
5. Step 5: Solve for x
   x = 947,760.93/1,097.82
6. Step 6: Final answer
   x = 863.31