Finding the Fourth Proportional to 2,080.67, 2,871.79 and 1,417.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.67 : 2,871.79 = 1,417.78 : x
2. Step 2: Convert to fraction form
   2,080.67/2,871.79 = 1,417.78/x
3. Step 3: Cross multiply
   2,080.67x = 2,871.79 × 1,417.78
4. Step 4: Simplify right side
   2,080.67x = 4,071,566.47
5. Step 5: Solve for x
   x = 4,071,566.47/2,080.67
6. Step 6: Final answer
   x = 1,956.86