Finding the Fourth Proportional to 2,379.35, 3,284.06 and 1,384.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.35 : 3,284.06 = 1,384.79 : x
2. Step 2: Convert to fraction form
   2,379.35/3,284.06 = 1,384.79/x
3. Step 3: Cross multiply
   2,379.35x = 3,284.06 × 1,384.79
4. Step 4: Simplify right side
   2,379.35x = 4,547,710.10
5. Step 5: Solve for x
   x = 4,547,710.10/2,379.35
6. Step 6: Final answer
   x = 1,911.33