Finding the Fourth Proportional to 3,851.74, 5,314.17 and 2,279.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.74 : 5,314.17 = 2,279.53 : x
2. Step 2: Convert to fraction form
   3,851.74/5,314.17 = 2,279.53/x
3. Step 3: Cross multiply
   3,851.74x = 5,314.17 × 2,279.53
4. Step 4: Simplify right side
   3,851.74x = 12,113,809.94
5. Step 5: Solve for x
   x = 12,113,809.94/3,851.74
6. Step 6: Final answer
   x = 3,145.02