Finding the Fourth Proportional to 2,520.55, 3,477.43 and 1,636.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.55 : 3,477.43 = 1,636.03 : x
2. Step 2: Convert to fraction form
   2,520.55/3,477.43 = 1,636.03/x
3. Step 3: Cross multiply
   2,520.55x = 3,477.43 × 1,636.03
4. Step 4: Simplify right side
   2,520.55x = 5,689,186.19
5. Step 5: Solve for x
   x = 5,689,186.19/2,520.55
6. Step 6: Final answer
   x = 2,257.12