Finding the Fourth Proportional to 2,080.88, 3,118.70 and 1,820.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.88 : 3,118.70 = 1,820.26 : x
2. Step 2: Convert to fraction form
   2,080.88/3,118.70 = 1,820.26/x
3. Step 3: Cross multiply
   2,080.88x = 3,118.70 × 1,820.26
4. Step 4: Simplify right side
   2,080.88x = 5,676,844.86
5. Step 5: Solve for x
   x = 5,676,844.86/2,080.88
6. Step 6: Final answer
   x = 2,728.10