Finding the Fourth Proportional to 3,111.86, 4,294.96 and 2,453.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.86 : 4,294.96 = 2,453.88 : x
2. Step 2: Convert to fraction form
   3,111.86/4,294.96 = 2,453.88/x
3. Step 3: Cross multiply
   3,111.86x = 4,294.96 × 2,453.88
4. Step 4: Simplify right side
   3,111.86x = 10,539,316.44
5. Step 5: Solve for x
   x = 10,539,316.44/3,111.86
6. Step 6: Final answer
   x = 3,386.82