Finding the Fourth Proportional to 1,366.52, 1,883.81 and 1,086.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.52 : 1,883.81 = 1,086.87 : x
2. Step 2: Convert to fraction form
   1,366.52/1,883.81 = 1,086.87/x
3. Step 3: Cross multiply
   1,366.52x = 1,883.81 × 1,086.87
4. Step 4: Simplify right side
   1,366.52x = 2,047,451.14
5. Step 5: Solve for x
   x = 2,047,451.14/1,366.52
6. Step 6: Final answer
   x = 1,498.30