Finding the Fourth Proportional to 2,352.89, 3,261.86 and 2,228.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,352.89 : 3,261.86 = 2,228.06 : x
2. Step 2: Convert to fraction form
   2,352.89/3,261.86 = 2,228.06/x
3. Step 3: Cross multiply
   2,352.89x = 3,261.86 × 2,228.06
4. Step 4: Simplify right side
   2,352.89x = 7,267,603.48
5. Step 5: Solve for x
   x = 7,267,603.48/2,352.89
6. Step 6: Final answer
   x = 3,088.80