Finding the Fourth Proportional to 2,079.80, 2,870.76 and 1,241.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,079.80 : 2,870.76 = 1,241.12 : x
2. Step 2: Convert to fraction form
   2,079.80/2,870.76 = 1,241.12/x
3. Step 3: Cross multiply
   2,079.80x = 2,870.76 × 1,241.12
4. Step 4: Simplify right side
   2,079.80x = 3,562,957.65
5. Step 5: Solve for x
   x = 3,562,957.65/2,079.80
6. Step 6: Final answer
   x = 1,713.13