Finding the Fourth Proportional to 1,910.28, 2,862.43 and 1,326.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,910.28 : 2,862.43 = 1,326.42 : x
2. Step 2: Convert to fraction form
   1,910.28/2,862.43 = 1,326.42/x
3. Step 3: Cross multiply
   1,910.28x = 2,862.43 × 1,326.42
4. Step 4: Simplify right side
   1,910.28x = 3,796,784.40
5. Step 5: Solve for x
   x = 3,796,784.40/1,910.28
6. Step 6: Final answer
   x = 1,987.55