Finding the Fourth Proportional to 2,945.48, 4,410.40 and 2,357.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.48 : 4,410.40 = 2,357.72 : x
2. Step 2: Convert to fraction form
   2,945.48/4,410.40 = 2,357.72/x
3. Step 3: Cross multiply
   2,945.48x = 4,410.40 × 2,357.72
4. Step 4: Simplify right side
   2,945.48x = 10,398,488.29
5. Step 5: Solve for x
   x = 10,398,488.29/2,945.48
6. Step 6: Final answer
   x = 3,530.32