Finding the Fourth Proportional to 2,115.67, 3,173.52 and 1,384.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115.67 : 3,173.52 = 1,384.24 : x
2. Step 2: Convert to fraction form
   2,115.67/3,173.52 = 1,384.24/x
3. Step 3: Cross multiply
   2,115.67x = 3,173.52 × 1,384.24
4. Step 4: Simplify right side
   2,115.67x = 4,392,913.32
5. Step 5: Solve for x
   x = 4,392,913.32/2,115.67
6. Step 6: Final answer
   x = 2,076.37