Finding the Fourth Proportional to 3,548.28, 5,315.59 and 2,764.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,548.28 : 5,315.59 = 2,764.61 : x
2. Step 2: Convert to fraction form
   3,548.28/5,315.59 = 2,764.61/x
3. Step 3: Cross multiply
   3,548.28x = 5,315.59 × 2,764.61
4. Step 4: Simplify right side
   3,548.28x = 14,695,533.27
5. Step 5: Solve for x
   x = 14,695,533.27/3,548.28
6. Step 6: Final answer
   x = 4,141.59