Finding the Fourth Proportional to 2,779.32, 3,825.72 and 2,516.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,779.32 : 3,825.72 = 2,516.88 : x
2. Step 2: Convert to fraction form
   2,779.32/3,825.72 = 2,516.88/x
3. Step 3: Cross multiply
   2,779.32x = 3,825.72 × 2,516.88
4. Step 4: Simplify right side
   2,779.32x = 9,628,878.15
5. Step 5: Solve for x
   x = 9,628,878.15/2,779.32
6. Step 6: Final answer
   x = 3,464.47