Finding the Fourth Proportional to 1,904.24, 2,854.68 and 1,081.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,904.24 : 2,854.68 = 1,081.34 : x
2. Step 2: Convert to fraction form
   1,904.24/2,854.68 = 1,081.34/x
3. Step 3: Cross multiply
   1,904.24x = 2,854.68 × 1,081.34
4. Step 4: Simplify right side
   1,904.24x = 3,086,865.40
5. Step 5: Solve for x
   x = 3,086,865.40/1,904.24
6. Step 6: Final answer
   x = 1,621.05