Finding the Fourth Proportional to 2,073.80, 3,111.31 and 888.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.80 : 3,111.31 = 888.27 : x
2. Step 2: Convert to fraction form
   2,073.80/3,111.31 = 888.27/x
3. Step 3: Cross multiply
   2,073.80x = 3,111.31 × 888.27
4. Step 4: Simplify right side
   2,073.80x = 2,763,672.78
5. Step 5: Solve for x
   x = 2,763,672.78/2,073.80
6. Step 6: Final answer
   x = 1,332.66