Finding the Fourth Proportional to 2,308.10, 3,453.62 and 1,384.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.10 : 3,453.62 = 1,384.30 : x
2. Step 2: Convert to fraction form
   2,308.10/3,453.62 = 1,384.30/x
3. Step 3: Cross multiply
   2,308.10x = 3,453.62 × 1,384.30
4. Step 4: Simplify right side
   2,308.10x = 4,780,846.17
5. Step 5: Solve for x
   x = 4,780,846.17/2,308.10
6. Step 6: Final answer
   x = 2,071.33