Finding the Fourth Proportional to 3,499.32, 4,828.86 and 2,101.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.32 : 4,828.86 = 2,101.80 : x
2. Step 2: Convert to fraction form
   3,499.32/4,828.86 = 2,101.80/x
3. Step 3: Cross multiply
   3,499.32x = 4,828.86 × 2,101.80
4. Step 4: Simplify right side
   3,499.32x = 10,149,297.95
5. Step 5: Solve for x
   x = 10,149,297.95/3,499.32
6. Step 6: Final answer
   x = 2,900.36