Finding the Fourth Proportional to 2,137.51, 3,200.82 and 1,809.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.51 : 3,200.82 = 1,809.46 : x
2. Step 2: Convert to fraction form
   2,137.51/3,200.82 = 1,809.46/x
3. Step 3: Cross multiply
   2,137.51x = 3,200.82 × 1,809.46
4. Step 4: Simplify right side
   2,137.51x = 5,791,755.76
5. Step 5: Solve for x
   x = 5,791,755.76/2,137.51
6. Step 6: Final answer
   x = 2,709.58