Finding the Fourth Proportional to 1,908.92, 2,859.72 and 1,291.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,908.92 : 2,859.72 = 1,291.56 : x
2. Step 2: Convert to fraction form
   1,908.92/2,859.72 = 1,291.56/x
3. Step 3: Cross multiply
   1,908.92x = 2,859.72 × 1,291.56
4. Step 4: Simplify right side
   1,908.92x = 3,693,499.96
5. Step 5: Solve for x
   x = 3,693,499.96/1,908.92
6. Step 6: Final answer
   x = 1,934.87