Finding the Fourth Proportional to 2,339.88, 3,501.91 and 1,284.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.88 : 3,501.91 = 1,284.18 : x
2. Step 2: Convert to fraction form
   2,339.88/3,501.91 = 1,284.18/x
3. Step 3: Cross multiply
   2,339.88x = 3,501.91 × 1,284.18
4. Step 4: Simplify right side
   2,339.88x = 4,497,082.78
5. Step 5: Solve for x
   x = 4,497,082.78/2,339.88
6. Step 6: Final answer
   x = 1,921.93