Finding the Fourth Proportional to 1,097.35, 1,647.20 and 610.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.35 : 1,647.20 = 610.27 : x
2. Step 2: Convert to fraction form
   1,097.35/1,647.20 = 610.27/x
3. Step 3: Cross multiply
   1,097.35x = 1,647.20 × 610.27
4. Step 4: Simplify right side
   1,097.35x = 1,005,236.74
5. Step 5: Solve for x
   x = 1,005,236.74/1,097.35
6. Step 6: Final answer
   x = 916.06