Finding the Fourth Proportional to 2,552.40, 3,521.34 and 1,556.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.40 : 3,521.34 = 1,556.94 : x
2. Step 2: Convert to fraction form
   2,552.40/3,521.34 = 1,556.94/x
3. Step 3: Cross multiply
   2,552.40x = 3,521.34 × 1,556.94
4. Step 4: Simplify right side
   2,552.40x = 5,482,515.10
5. Step 5: Solve for x
   x = 5,482,515.10/2,552.40
6. Step 6: Final answer
   x = 2,147.98