Finding the Fourth Proportional to 1,758.08, 2,426.28 and 1,086.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.08 : 2,426.28 = 1,086.05 : x
2. Step 2: Convert to fraction form
   1,758.08/2,426.28 = 1,086.05/x
3. Step 3: Cross multiply
   1,758.08x = 2,426.28 × 1,086.05
4. Step 4: Simplify right side
   1,758.08x = 2,635,061.39
5. Step 5: Solve for x
   x = 2,635,061.39/1,758.08
6. Step 6: Final answer
   x = 1,498.83