Finding the Fourth Proportional to 2,156.32, 3,233.13 and 923.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.32 : 3,233.13 = 923.05 : x
2. Step 2: Convert to fraction form
   2,156.32/3,233.13 = 923.05/x
3. Step 3: Cross multiply
   2,156.32x = 3,233.13 × 923.05
4. Step 4: Simplify right side
   2,156.32x = 2,984,340.65
5. Step 5: Solve for x
   x = 2,984,340.65/2,156.32
6. Step 6: Final answer
   x = 1,384.00