Finding the Fourth Proportional to 2,114.32, 2,917.89 and 1,170.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.32 : 2,917.89 = 1,170.12 : x
2. Step 2: Convert to fraction form
   2,114.32/2,917.89 = 1,170.12/x
3. Step 3: Cross multiply
   2,114.32x = 2,917.89 × 1,170.12
4. Step 4: Simplify right side
   2,114.32x = 3,414,281.45
5. Step 5: Solve for x
   x = 3,414,281.45/2,114.32
6. Step 6: Final answer
   x = 1,614.84