Finding the Fourth Proportional to 2,054.34, 2,834.37 and 1,215.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.34 : 2,834.37 = 1,215.12 : x
2. Step 2: Convert to fraction form
   2,054.34/2,834.37 = 1,215.12/x
3. Step 3: Cross multiply
   2,054.34x = 2,834.37 × 1,215.12
4. Step 4: Simplify right side
   2,054.34x = 3,444,099.67
5. Step 5: Solve for x
   x = 3,444,099.67/2,054.34
6. Step 6: Final answer
   x = 1,676.50