Finding the Fourth Proportional to 2,518.47, 3,778.94 and 1,132.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.47 : 3,778.94 = 1,132.78 : x
2. Step 2: Convert to fraction form
   2,518.47/3,778.94 = 1,132.78/x
3. Step 3: Cross multiply
   2,518.47x = 3,778.94 × 1,132.78
4. Step 4: Simplify right side
   2,518.47x = 4,280,717.10
5. Step 5: Solve for x
   x = 4,280,717.10/2,518.47
6. Step 6: Final answer
   x = 1,699.73