Finding the Fourth Proportional to 2,500.10, 3,751.78 and 1,113.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,500.10 : 3,751.78 = 1,113.80 : x
2. Step 2: Convert to fraction form
   2,500.10/3,751.78 = 1,113.80/x
3. Step 3: Cross multiply
   2,500.10x = 3,751.78 × 1,113.80
4. Step 4: Simplify right side
   2,500.10x = 4,178,732.56
5. Step 5: Solve for x
   x = 4,178,732.56/2,500.10
6. Step 6: Final answer
   x = 1,671.43