Finding the Fourth Proportional to 2,551.58, 3,521.50 and 1,556.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.58 : 3,521.50 = 1,556.83 : x
2. Step 2: Convert to fraction form
   2,551.58/3,521.50 = 1,556.83/x
3. Step 3: Cross multiply
   2,551.58x = 3,521.50 × 1,556.83
4. Step 4: Simplify right side
   2,551.58x = 5,482,364.15
5. Step 5: Solve for x
   x = 5,482,364.15/2,551.58
6. Step 6: Final answer
   x = 2,148.62