Finding the Fourth Proportional to 3,953.82, 5,456.34 and 2,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.82 : 5,456.34 = 2,275.50 : x
2. Step 2: Convert to fraction form
   3,953.82/5,456.34 = 2,275.50/x
3. Step 3: Cross multiply
   3,953.82x = 5,456.34 × 2,275.50
4. Step 4: Simplify right side
   3,953.82x = 12,415,901.67
5. Step 5: Solve for x
   x = 12,415,901.67/3,953.82
6. Step 6: Final answer
   x = 3,140.23