Finding the Fourth Proportional to 2,203.86, 3,040.17 and 1,319.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,203.86 : 3,040.17 = 1,319.40 : x
2. Step 2: Convert to fraction form
   2,203.86/3,040.17 = 1,319.40/x
3. Step 3: Cross multiply
   2,203.86x = 3,040.17 × 1,319.40
4. Step 4: Simplify right side
   2,203.86x = 4,011,200.30
5. Step 5: Solve for x
   x = 4,011,200.30/2,203.86
6. Step 6: Final answer
   x = 1,820.08