Finding the Fourth Proportional to 1,366.72, 1,885.77 and 806.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.72 : 1,885.77 = 806.98 : x
2. Step 2: Convert to fraction form
   1,366.72/1,885.77 = 806.98/x
3. Step 3: Cross multiply
   1,366.72x = 1,885.77 × 806.98
4. Step 4: Simplify right side
   1,366.72x = 1,521,778.67
5. Step 5: Solve for x
   x = 1,521,778.67/1,366.72
6. Step 6: Final answer
   x = 1,113.45