Finding the Fourth Proportional to 2,550.52, 3,520.80 and 1,556.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.52 : 3,520.80 = 1,556.17 : x
2. Step 2: Convert to fraction form
   2,550.52/3,520.80 = 1,556.17/x
3. Step 3: Cross multiply
   2,550.52x = 3,520.80 × 1,556.17
4. Step 4: Simplify right side
   2,550.52x = 5,478,963.34
5. Step 5: Solve for x
   x = 5,478,963.34/2,550.52
6. Step 6: Final answer
   x = 2,148.18