Finding the Fourth Proportional to 2,419.62, 3,339.56 and 1,371.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.62 : 3,339.56 = 1,371.72 : x
2. Step 2: Convert to fraction form
   2,419.62/3,339.56 = 1,371.72/x
3. Step 3: Cross multiply
   2,419.62x = 3,339.56 × 1,371.72
4. Step 4: Simplify right side
   2,419.62x = 4,580,941.24
5. Step 5: Solve for x
   x = 4,580,941.24/2,419.62
6. Step 6: Final answer
   x = 1,893.25