Finding the Fourth Proportional to 2,094.21, 3,142.52 and 939.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.21 : 3,142.52 = 939.96 : x
2. Step 2: Convert to fraction form
   2,094.21/3,142.52 = 939.96/x
3. Step 3: Cross multiply
   2,094.21x = 3,142.52 × 939.96
4. Step 4: Simplify right side
   2,094.21x = 2,953,843.10
5. Step 5: Solve for x
   x = 2,953,843.10/2,094.21
6. Step 6: Final answer
   x = 1,410.48