Finding the Fourth Proportional to 2,080.79, 2,870.74 and 1,335.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.79 : 2,870.74 = 1,335.08 : x
2. Step 2: Convert to fraction form
   2,080.79/2,870.74 = 1,335.08/x
3. Step 3: Cross multiply
   2,080.79x = 2,870.74 × 1,335.08
4. Step 4: Simplify right side
   2,080.79x = 3,832,676.40
5. Step 5: Solve for x
   x = 3,832,676.40/2,080.79
6. Step 6: Final answer
   x = 1,841.93