Finding the Fourth Proportional to 2,090.87, 2,891.67 and 1,828.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.87 : 2,891.67 = 1,828.43 : x
2. Step 2: Convert to fraction form
   2,090.87/2,891.67 = 1,828.43/x
3. Step 3: Cross multiply
   2,090.87x = 2,891.67 × 1,828.43
4. Step 4: Simplify right side
   2,090.87x = 5,287,216.18
5. Step 5: Solve for x
   x = 5,287,216.18/2,090.87
6. Step 6: Final answer
   x = 2,528.72