Finding the Fourth Proportional to 3,488.28, 4,813.56 and 2,090.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.28 : 4,813.56 = 2,090.76 : x
2. Step 2: Convert to fraction form
   3,488.28/4,813.56 = 2,090.76/x
3. Step 3: Cross multiply
   3,488.28x = 4,813.56 × 2,090.76
4. Step 4: Simplify right side
   3,488.28x = 10,063,998.71
5. Step 5: Solve for x
   x = 10,063,998.71/3,488.28
6. Step 6: Final answer
   x = 2,885.09