Finding the Fourth Proportional to 2,888.88, 3,978.72 and 2,495.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,888.88 : 3,978.72 = 2,495.76 : x
2. Step 2: Convert to fraction form
   2,888.88/3,978.72 = 2,495.76/x
3. Step 3: Cross multiply
   2,888.88x = 3,978.72 × 2,495.76
4. Step 4: Simplify right side
   2,888.88x = 9,929,930.23
5. Step 5: Solve for x
   x = 9,929,930.23/2,888.88
6. Step 6: Final answer
   x = 3,437.29