Finding the Fourth Proportional to 1,617.08, 2,424.64 and 1,097.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.08 : 2,424.64 = 1,097.72 : x
2. Step 2: Convert to fraction form
   1,617.08/2,424.64 = 1,097.72/x
3. Step 3: Cross multiply
   1,617.08x = 2,424.64 × 1,097.72
4. Step 4: Simplify right side
   1,617.08x = 2,661,575.82
5. Step 5: Solve for x
   x = 2,661,575.82/1,617.08
6. Step 6: Final answer
   x = 1,645.91