Finding the Fourth Proportional to 1,412.16, 1,949.31 and 888.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.16 : 1,949.31 = 888.09 : x
2. Step 2: Convert to fraction form
   1,412.16/1,949.31 = 888.09/x
3. Step 3: Cross multiply
   1,412.16x = 1,949.31 × 888.09
4. Step 4: Simplify right side
   1,412.16x = 1,731,162.72
5. Step 5: Solve for x
   x = 1,731,162.72/1,412.16
6. Step 6: Final answer
   x = 1,225.90