Finding the Fourth Proportional to 2,478.01, 3,419.71 and 1,359

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.01 : 3,419.71 = 1,359 : x
2. Step 2: Convert to fraction form
   2,478.01/3,419.71 = 1,359/x
3. Step 3: Cross multiply
   2,478.01x = 3,419.71 × 1,359
4. Step 4: Simplify right side
   2,478.01x = 4,647,385.89
5. Step 5: Solve for x
   x = 4,647,385.89/2,478.01
6. Step 6: Final answer
   x = 1,875.45