Finding the Fourth Proportional to 2,057.89, 3,087.16 and 888.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.89 : 3,087.16 = 888.22 : x
2. Step 2: Convert to fraction form
   2,057.89/3,087.16 = 888.22/x
3. Step 3: Cross multiply
   2,057.89x = 3,087.16 × 888.22
4. Step 4: Simplify right side
   2,057.89x = 2,742,077.26
5. Step 5: Solve for x
   x = 2,742,077.26/2,057.89
6. Step 6: Final answer
   x = 1,332.47