Finding the Fourth Proportional to 2,112.17, 2,914.83 and 1,326.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.17 : 2,914.83 = 1,326.21 : x
2. Step 2: Convert to fraction form
   2,112.17/2,914.83 = 1,326.21/x
3. Step 3: Cross multiply
   2,112.17x = 2,914.83 × 1,326.21
4. Step 4: Simplify right side
   2,112.17x = 3,865,676.69
5. Step 5: Solve for x
   x = 3,865,676.69/2,112.17
6. Step 6: Final answer
   x = 1,830.20