Finding the Fourth Proportional to 2,415.42, 3,620.48 and 1,581.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.42 : 3,620.48 = 1,581.48 : x
2. Step 2: Convert to fraction form
   2,415.42/3,620.48 = 1,581.48/x
3. Step 3: Cross multiply
   2,415.42x = 3,620.48 × 1,581.48
4. Step 4: Simplify right side
   2,415.42x = 5,725,708.80
5. Step 5: Solve for x
   x = 5,725,708.80/2,415.42
6. Step 6: Final answer
   x = 2,370.48