Finding the Fourth Proportional to 3,479.31, 4,798.89 and 2,219.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,479.31 : 4,798.89 = 2,219.31 : x
2. Step 2: Convert to fraction form
   3,479.31/4,798.89 = 2,219.31/x
3. Step 3: Cross multiply
   3,479.31x = 4,798.89 × 2,219.31
4. Step 4: Simplify right side
   3,479.31x = 10,650,224.57
5. Step 5: Solve for x
   x = 10,650,224.57/3,479.31
6. Step 6: Final answer
   x = 3,061.02