Finding the Fourth Proportional to 2,926.80, 4,387.59 and 1,282.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.80 : 4,387.59 = 1,282.05 : x
2. Step 2: Convert to fraction form
   2,926.80/4,387.59 = 1,282.05/x
3. Step 3: Cross multiply
   2,926.80x = 4,387.59 × 1,282.05
4. Step 4: Simplify right side
   2,926.80x = 5,625,109.76
5. Step 5: Solve for x
   x = 5,625,109.76/2,926.80
6. Step 6: Final answer
   x = 1,921.93