Finding the Fourth Proportional to 2,094.47, 3,142.56 and 923.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.47 : 3,142.56 = 923.85 : x
2. Step 2: Convert to fraction form
   2,094.47/3,142.56 = 923.85/x
3. Step 3: Cross multiply
   2,094.47x = 3,142.56 × 923.85
4. Step 4: Simplify right side
   2,094.47x = 2,903,257.52
5. Step 5: Solve for x
   x = 2,903,257.52/2,094.47
6. Step 6: Final answer
   x = 1,386.15