Finding the Fourth Proportional to 2,043.45, 3,057.89 and 1,635.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.45 : 3,057.89 = 1,635.21 : x
2. Step 2: Convert to fraction form
   2,043.45/3,057.89 = 1,635.21/x
3. Step 3: Cross multiply
   2,043.45x = 3,057.89 × 1,635.21
4. Step 4: Simplify right side
   2,043.45x = 5,000,284.13
5. Step 5: Solve for x
   x = 5,000,284.13/2,043.45
6. Step 6: Final answer
   x = 2,446.98