Finding the Fourth Proportional to 2,556.56, 3,835.32 and 1,400.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.56 : 3,835.32 = 1,400.72 : x
2. Step 2: Convert to fraction form
   2,556.56/3,835.32 = 1,400.72/x
3. Step 3: Cross multiply
   2,556.56x = 3,835.32 × 1,400.72
4. Step 4: Simplify right side
   2,556.56x = 5,372,209.43
5. Step 5: Solve for x
   x = 5,372,209.43/2,556.56
6. Step 6: Final answer
   x = 2,101.34