Finding the Fourth Proportional to 2,441.60, 3,366.72 and 1,556

Step by Step Solution

1. Step 1: Write the proportion equation
   2,441.60 : 3,366.72 = 1,556 : x
2. Step 2: Convert to fraction form
   2,441.60/3,366.72 = 1,556/x
3. Step 3: Cross multiply
   2,441.60x = 3,366.72 × 1,556
4. Step 4: Simplify right side
   2,441.60x = 5,238,616.32
5. Step 5: Solve for x
   x = 5,238,616.32/2,441.60
6. Step 6: Final answer
   x = 2,145.57