Finding the Fourth Proportional to 1,455.86, 2,008.76 and 866.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.86 : 2,008.76 = 866.27 : x
2. Step 2: Convert to fraction form
   1,455.86/2,008.76 = 866.27/x
3. Step 3: Cross multiply
   1,455.86x = 2,008.76 × 866.27
4. Step 4: Simplify right side
   1,455.86x = 1,740,135.71
5. Step 5: Solve for x
   x = 1,740,135.71/1,455.86
6. Step 6: Final answer
   x = 1,195.27