Finding the Fourth Proportional to 1,446.61, 1,995.86 and 886.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.61 : 1,995.86 = 886.80 : x
2. Step 2: Convert to fraction form
   1,446.61/1,995.86 = 886.80/x
3. Step 3: Cross multiply
   1,446.61x = 1,995.86 × 886.80
4. Step 4: Simplify right side
   1,446.61x = 1,769,922.13
5. Step 5: Solve for x
   x = 1,769,922.13/1,446.61
6. Step 6: Final answer
   x = 1,223.50