Finding the Fourth Proportional to 2,556.07, 3,826.14 and 1,969.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.07 : 3,826.14 = 1,969.55 : x
2. Step 2: Convert to fraction form
   2,556.07/3,826.14 = 1,969.55/x
3. Step 3: Cross multiply
   2,556.07x = 3,826.14 × 1,969.55
4. Step 4: Simplify right side
   2,556.07x = 7,535,774.04
5. Step 5: Solve for x
   x = 7,535,774.04/2,556.07
6. Step 6: Final answer
   x = 2,948.19