Finding the Fourth Proportional to 2,478.15, 3,419.82 and 1,359.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.15 : 3,419.82 = 1,359.18 : x
2. Step 2: Convert to fraction form
   2,478.15/3,419.82 = 1,359.18/x
3. Step 3: Cross multiply
   2,478.15x = 3,419.82 × 1,359.18
4. Step 4: Simplify right side
   2,478.15x = 4,648,150.95
5. Step 5: Solve for x
   x = 4,648,150.95/2,478.15
6. Step 6: Final answer
   x = 1,875.65