Finding the Fourth Proportional to 2,329.31, 3,213.31 and 1,384.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,329.31 : 3,213.31 = 1,384.43 : x
2. Step 2: Convert to fraction form
   2,329.31/3,213.31 = 1,384.43/x
3. Step 3: Cross multiply
   2,329.31x = 3,213.31 × 1,384.43
4. Step 4: Simplify right side
   2,329.31x = 4,448,602.21
5. Step 5: Solve for x
   x = 4,448,602.21/2,329.31
6. Step 6: Final answer
   x = 1,909.84