Finding the Fourth Proportional to 3,499.14, 4,828.80 and 2,101.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.14 : 4,828.80 = 2,101.89 : x
2. Step 2: Convert to fraction form
   3,499.14/4,828.80 = 2,101.89/x
3. Step 3: Cross multiply
   3,499.14x = 4,828.80 × 2,101.89
4. Step 4: Simplify right side
   3,499.14x = 10,149,606.43
5. Step 5: Solve for x
   x = 10,149,606.43/3,499.14
6. Step 6: Final answer
   x = 2,900.60