Finding the Fourth Proportional to 3,719.58, 5,579.88 and 1,255.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,719.58 : 5,579.88 = 1,255.10 : x
2. Step 2: Convert to fraction form
   3,719.58/5,579.88 = 1,255.10/x
3. Step 3: Cross multiply
   3,719.58x = 5,579.88 × 1,255.10
4. Step 4: Simplify right side
   3,719.58x = 7,003,307.39
5. Step 5: Solve for x
   x = 7,003,307.39/3,719.58
6. Step 6: Final answer
   x = 1,882.82