Finding the Fourth Proportional to 2,556.35, 3,811.51 and 2,492.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.35 : 3,811.51 = 2,492.57 : x
2. Step 2: Convert to fraction form
   2,556.35/3,811.51 = 2,492.57/x
3. Step 3: Cross multiply
   2,556.35x = 3,811.51 × 2,492.57
4. Step 4: Simplify right side
   2,556.35x = 9,500,430.19
5. Step 5: Solve for x
   x = 9,500,430.19/2,556.35
6. Step 6: Final answer
   x = 3,716.40