Finding the Fourth Proportional to 2,087.33, 3,127.46 and 1,263.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.33 : 3,127.46 = 1,263.11 : x
2. Step 2: Convert to fraction form
   2,087.33/3,127.46 = 1,263.11/x
3. Step 3: Cross multiply
   2,087.33x = 3,127.46 × 1,263.11
4. Step 4: Simplify right side
   2,087.33x = 3,950,304.05
5. Step 5: Solve for x
   x = 3,950,304.05/2,087.33
6. Step 6: Final answer
   x = 1,892.52