Finding the Fourth Proportional to 2,556.90, 3,528.50 and 1,437.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.90 : 3,528.50 = 1,437.75 : x
2. Step 2: Convert to fraction form
   2,556.90/3,528.50 = 1,437.75/x
3. Step 3: Cross multiply
   2,556.90x = 3,528.50 × 1,437.75
4. Step 4: Simplify right side
   2,556.90x = 5,073,093.69
5. Step 5: Solve for x
   x = 5,073,093.69/2,556.90
6. Step 6: Final answer
   x = 1,984.08