Finding the Fourth Proportional to 3,443.76, 5,168.34 and 1,253.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.76 : 5,168.34 = 1,253.88 : x
2. Step 2: Convert to fraction form
   3,443.76/5,168.34 = 1,253.88/x
3. Step 3: Cross multiply
   3,443.76x = 5,168.34 × 1,253.88
4. Step 4: Simplify right side
   3,443.76x = 6,480,478.16
5. Step 5: Solve for x
   x = 6,480,478.16/3,443.76
6. Step 6: Final answer
   x = 1,881.80