Finding the Fourth Proportional to 2,552.32, 3,521.04 and 1,556.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.32 : 3,521.04 = 1,556.80 : x
2. Step 2: Convert to fraction form
   2,552.32/3,521.04 = 1,556.80/x
3. Step 3: Cross multiply
   2,552.32x = 3,521.04 × 1,556.80
4. Step 4: Simplify right side
   2,552.32x = 5,481,555.07
5. Step 5: Solve for x
   x = 5,481,555.07/2,552.32
6. Step 6: Final answer
   x = 2,147.68