Finding the Fourth Proportional to 4,084.43, 5,638.20 and 3,090.02

Step by Step Solution

1. Step 1: Write the proportion equation
   4,084.43 : 5,638.20 = 3,090.02 : x
2. Step 2: Convert to fraction form
   4,084.43/5,638.20 = 3,090.02/x
3. Step 3: Cross multiply
   4,084.43x = 5,638.20 × 3,090.02
4. Step 4: Simplify right side
   4,084.43x = 17,422,150.76
5. Step 5: Solve for x
   x = 17,422,150.76/4,084.43
6. Step 6: Final answer
   x = 4,265.50