Finding the Fourth Proportional to 2,622.63, 3,619.20 and 1,503.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.63 : 3,619.20 = 1,503.57 : x
2. Step 2: Convert to fraction form
   2,622.63/3,619.20 = 1,503.57/x
3. Step 3: Cross multiply
   2,622.63x = 3,619.20 × 1,503.57
4. Step 4: Simplify right side
   2,622.63x = 5,441,720.54
5. Step 5: Solve for x
   x = 5,441,720.54/2,622.63
6. Step 6: Final answer
   x = 2,074.91