Finding the Fourth Proportional to 2,505.51, 3,756.78 and 1,118.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,505.51 : 3,756.78 = 1,118.11 : x
2. Step 2: Convert to fraction form
   2,505.51/3,756.78 = 1,118.11/x
3. Step 3: Cross multiply
   2,505.51x = 3,756.78 × 1,118.11
4. Step 4: Simplify right side
   2,505.51x = 4,200,493.29
5. Step 5: Solve for x
   x = 4,200,493.29/2,505.51
6. Step 6: Final answer
   x = 1,676.50