Finding the Fourth Proportional to 1,366.17, 1,884.99 and 806.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.17 : 1,884.99 = 806.66 : x
2. Step 2: Convert to fraction form
   1,366.17/1,884.99 = 806.66/x
3. Step 3: Cross multiply
   1,366.17x = 1,884.99 × 806.66
4. Step 4: Simplify right side
   1,366.17x = 1,520,536.61
5. Step 5: Solve for x
   x = 1,520,536.61/1,366.17
6. Step 6: Final answer
   x = 1,112.99