Finding the Fourth Proportional to 2,556.52, 3,836.20 and 1,386.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.52 : 3,836.20 = 1,386.52 : x
2. Step 2: Convert to fraction form
   2,556.52/3,836.20 = 1,386.52/x
3. Step 3: Cross multiply
   2,556.52x = 3,836.20 × 1,386.52
4. Step 4: Simplify right side
   2,556.52x = 5,318,968.02
5. Step 5: Solve for x
   x = 5,318,968.02/2,556.52
6. Step 6: Final answer
   x = 2,080.55