Finding the Fourth Proportional to 1,446.91, 1,996.78 and 887.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.91 : 1,996.78 = 887.69 : x
2. Step 2: Convert to fraction form
   1,446.91/1,996.78 = 887.69/x
3. Step 3: Cross multiply
   1,446.91x = 1,996.78 × 887.69
4. Step 4: Simplify right side
   1,446.91x = 1,772,519.37
5. Step 5: Solve for x
   x = 1,772,519.37/1,446.91
6. Step 6: Final answer
   x = 1,225.04