Finding the Fourth Proportional to 2,929.58, 4,391.89 and 1,284.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.58 : 4,391.89 = 1,284.88 : x
2. Step 2: Convert to fraction form
   2,929.58/4,391.89 = 1,284.88/x
3. Step 3: Cross multiply
   2,929.58x = 4,391.89 × 1,284.88
4. Step 4: Simplify right side
   2,929.58x = 5,643,051.62
5. Step 5: Solve for x
   x = 5,643,051.62/2,929.58
6. Step 6: Final answer
   x = 1,926.23