Finding the Fourth Proportional to 2,355.38, 3,530.16 and 1,054.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.38 : 3,530.16 = 1,054.16 : x
2. Step 2: Convert to fraction form
   2,355.38/3,530.16 = 1,054.16/x
3. Step 3: Cross multiply
   2,355.38x = 3,530.16 × 1,054.16
4. Step 4: Simplify right side
   2,355.38x = 3,721,353.47
5. Step 5: Solve for x
   x = 3,721,353.47/2,355.38
6. Step 6: Final answer
   x = 1,579.94