Finding the Fourth Proportional to 2,054.33, 2,834.77 and 1,215.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.33 : 2,834.77 = 1,215.02 : x
2. Step 2: Convert to fraction form
   2,054.33/2,834.77 = 1,215.02/x
3. Step 3: Cross multiply
   2,054.33x = 2,834.77 × 1,215.02
4. Step 4: Simplify right side
   2,054.33x = 3,444,288.07
5. Step 5: Solve for x
   x = 3,444,288.07/2,054.33
6. Step 6: Final answer
   x = 1,676.60