Finding the Fourth Proportional to 2,104.48, 2,904.25 and 1,160.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.48 : 2,904.25 = 1,160.31 : x
2. Step 2: Convert to fraction form
   2,104.48/2,904.25 = 1,160.31/x
3. Step 3: Cross multiply
   2,104.48x = 2,904.25 × 1,160.31
4. Step 4: Simplify right side
   2,104.48x = 3,369,830.32
5. Step 5: Solve for x
   x = 3,369,830.32/2,104.48
6. Step 6: Final answer
   x = 1,601.27