Finding the Fourth Proportional to 3,852.76, 5,316.72 and 2,280.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,852.76 : 5,316.72 = 2,280.88 : x
2. Step 2: Convert to fraction form
   3,852.76/5,316.72 = 2,280.88/x
3. Step 3: Cross multiply
   3,852.76x = 5,316.72 × 2,280.88
4. Step 4: Simplify right side
   3,852.76x = 12,126,800.31
5. Step 5: Solve for x
   x = 12,126,800.31/3,852.76
6. Step 6: Final answer
   x = 3,147.56