Finding the Fourth Proportional to 7,131.51, 10,698.89 and 2,201.85

Step by Step Solution

1. Step 1: Write the proportion equation
   7,131.51 : 10,698.89 = 2,201.85 : x
2. Step 2: Convert to fraction form
   7,131.51/10,698.89 = 2,201.85/x
3. Step 3: Cross multiply
   7,131.51x = 10,698.89 × 2,201.85
4. Step 4: Simplify right side
   7,131.51x = 23,557,339.94
5. Step 5: Solve for x
   x = 23,557,339.94/7,131.51
6. Step 6: Final answer
   x = 3,303.28