Finding the Fourth Proportional to 2,080.13, 3,117.59 and 1,040.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.13 : 3,117.59 = 1,040.43 : x
2. Step 2: Convert to fraction form
   2,080.13/3,117.59 = 1,040.43/x
3. Step 3: Cross multiply
   2,080.13x = 3,117.59 × 1,040.43
4. Step 4: Simplify right side
   2,080.13x = 3,243,636.76
5. Step 5: Solve for x
   x = 3,243,636.76/2,080.13
6. Step 6: Final answer
   x = 1,559.34