Finding the Fourth Proportional to 2,016.52, 2,783.70 and 1,230.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.52 : 2,783.70 = 1,230.88 : x
2. Step 2: Convert to fraction form
   2,016.52/2,783.70 = 1,230.88/x
3. Step 3: Cross multiply
   2,016.52x = 2,783.70 × 1,230.88
4. Step 4: Simplify right side
   2,016.52x = 3,426,400.66
5. Step 5: Solve for x
   x = 3,426,400.66/2,016.52
6. Step 6: Final answer
   x = 1,699.17