Finding the Fourth Proportional to 2,624.90, 3,622.20 and 1,577.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.90 : 3,622.20 = 1,577.54 : x
2. Step 2: Convert to fraction form
   2,624.90/3,622.20 = 1,577.54/x
3. Step 3: Cross multiply
   2,624.90x = 3,622.20 × 1,577.54
4. Step 4: Simplify right side
   2,624.90x = 5,714,165.39
5. Step 5: Solve for x
   x = 5,714,165.39/2,624.90
6. Step 6: Final answer
   x = 2,176.91