Finding the Fourth Proportional to 2,425.77, 3,638.61 and 1,456.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.77 : 3,638.61 = 1,456.20 : x
2. Step 2: Convert to fraction form
   2,425.77/3,638.61 = 1,456.20/x
3. Step 3: Cross multiply
   2,425.77x = 3,638.61 × 1,456.20
4. Step 4: Simplify right side
   2,425.77x = 5,298,543.88
5. Step 5: Solve for x
   x = 5,298,543.88/2,425.77
6. Step 6: Final answer
   x = 2,184.27