Finding the Fourth Proportional to 1,758.12, 2,426.49 and 1,086.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.12 : 2,426.49 = 1,086.33 : x
2. Step 2: Convert to fraction form
   1,758.12/2,426.49 = 1,086.33/x
3. Step 3: Cross multiply
   1,758.12x = 2,426.49 × 1,086.33
4. Step 4: Simplify right side
   1,758.12x = 2,635,968.88
5. Step 5: Solve for x
   x = 2,635,968.88/1,758.12
6. Step 6: Final answer
   x = 1,499.31