Finding the Fourth Proportional to 2,764.17, 4,147.23 and 1,284.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,764.17 : 4,147.23 = 1,284.10 : x
2. Step 2: Convert to fraction form
   2,764.17/4,147.23 = 1,284.10/x
3. Step 3: Cross multiply
   2,764.17x = 4,147.23 × 1,284.10
4. Step 4: Simplify right side
   2,764.17x = 5,325,458.04
5. Step 5: Solve for x
   x = 5,325,458.04/2,764.17
6. Step 6: Final answer
   x = 1,926.60