Finding the Fourth Proportional to 3,779.10, 5,664.12 and 2,219.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,779.10 : 5,664.12 = 2,219.82 : x
2. Step 2: Convert to fraction form
   3,779.10/5,664.12 = 2,219.82/x
3. Step 3: Cross multiply
   3,779.10x = 5,664.12 × 2,219.82
4. Step 4: Simplify right side
   3,779.10x = 12,573,326.86
5. Step 5: Solve for x
   x = 12,573,326.86/3,779.10
6. Step 6: Final answer
   x = 3,327.07