Finding the Fourth Proportional to 3,752.76, 5,627.42 and 1,286.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,752.76 : 5,627.42 = 1,286.94 : x
2. Step 2: Convert to fraction form
   3,752.76/5,627.42 = 1,286.94/x
3. Step 3: Cross multiply
   3,752.76x = 5,627.42 × 1,286.94
4. Step 4: Simplify right side
   3,752.76x = 7,242,151.89
5. Step 5: Solve for x
   x = 7,242,151.89/3,752.76
6. Step 6: Final answer
   x = 1,929.82