Finding the Fourth Proportional to 2,117.42, 3,177.06 and 1,142.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.42 : 3,177.06 = 1,142.38 : x
2. Step 2: Convert to fraction form
   2,117.42/3,177.06 = 1,142.38/x
3. Step 3: Cross multiply
   2,117.42x = 3,177.06 × 1,142.38
4. Step 4: Simplify right side
   2,117.42x = 3,629,409.80
5. Step 5: Solve for x
   x = 3,629,409.80/2,117.42
6. Step 6: Final answer
   x = 1,714.07