Finding the Fourth Proportional to 2,094.86, 3,142.40 and 1,272.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.86 : 3,142.40 = 1,272.51 : x
2. Step 2: Convert to fraction form
   2,094.86/3,142.40 = 1,272.51/x
3. Step 3: Cross multiply
   2,094.86x = 3,142.40 × 1,272.51
4. Step 4: Simplify right side
   2,094.86x = 3,998,729.06
5. Step 5: Solve for x
   x = 3,998,729.06/2,094.86
6. Step 6: Final answer
   x = 1,908.83