Finding the Fourth Proportional to 2,090.28, 2,897.67 and 2,008.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.28 : 2,897.67 = 2,008.20 : x
2. Step 2: Convert to fraction form
   2,090.28/2,897.67 = 2,008.20/x
3. Step 3: Cross multiply
   2,090.28x = 2,897.67 × 2,008.20
4. Step 4: Simplify right side
   2,090.28x = 5,819,100.89
5. Step 5: Solve for x
   x = 5,819,100.89/2,090.28
6. Step 6: Final answer
   x = 2,783.89