Finding the Fourth Proportional to 2,945.72, 4,418.70 and 1,097.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.72 : 4,418.70 = 1,097.30 : x
2. Step 2: Convert to fraction form
   2,945.72/4,418.70 = 1,097.30/x
3. Step 3: Cross multiply
   2,945.72x = 4,418.70 × 1,097.30
4. Step 4: Simplify right side
   2,945.72x = 4,848,639.51
5. Step 5: Solve for x
   x = 4,848,639.51/2,945.72
6. Step 6: Final answer
   x = 1,645.99