Finding the Fourth Proportional to 1,924.29, 2,655.72 and 1,216.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,924.29 : 2,655.72 = 1,216.35 : x
2. Step 2: Convert to fraction form
   1,924.29/2,655.72 = 1,216.35/x
3. Step 3: Cross multiply
   1,924.29x = 2,655.72 × 1,216.35
4. Step 4: Simplify right side
   1,924.29x = 3,230,285.02
5. Step 5: Solve for x
   x = 3,230,285.02/1,924.29
6. Step 6: Final answer
   x = 1,678.69