Finding the Fourth Proportional to 3,638.22, 5,460.18 and 2,535.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638.22 : 5,460.18 = 2,535.40 : x
2. Step 2: Convert to fraction form
   3,638.22/5,460.18 = 2,535.40/x
3. Step 3: Cross multiply
   3,638.22x = 5,460.18 × 2,535.40
4. Step 4: Simplify right side
   3,638.22x = 13,843,740.37
5. Step 5: Solve for x
   x = 13,843,740.37/3,638.22
6. Step 6: Final answer
   x = 3,805.09