Finding the Fourth Proportional to 2,137.31, 3,201.71 and 1,699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.31 : 3,201.71 = 1,699.31 : x
2. Step 2: Convert to fraction form
   2,137.31/3,201.71 = 1,699.31/x
3. Step 3: Cross multiply
   2,137.31x = 3,201.71 × 1,699.31
4. Step 4: Simplify right side
   2,137.31x = 5,440,673.32
5. Step 5: Solve for x
   x = 5,440,673.32/2,137.31
6. Step 6: Final answer
   x = 2,545.58