Finding the Fourth Proportional to 2,112.50, 3,169.84 and 942.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.50 : 3,169.84 = 942.86 : x
2. Step 2: Convert to fraction form
   2,112.50/3,169.84 = 942.86/x
3. Step 3: Cross multiply
   2,112.50x = 3,169.84 × 942.86
4. Step 4: Simplify right side
   2,112.50x = 2,988,715.34
5. Step 5: Solve for x
   x = 2,988,715.34/2,112.50
6. Step 6: Final answer
   x = 1,414.78