Finding the Fourth Proportional to 1,606.13, 2,215.76 and 1,016.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.13 : 2,215.76 = 1,016.30 : x
2. Step 2: Convert to fraction form
   1,606.13/2,215.76 = 1,016.30/x
3. Step 3: Cross multiply
   1,606.13x = 2,215.76 × 1,016.30
4. Step 4: Simplify right side
   1,606.13x = 2,251,864.88
5. Step 5: Solve for x
   x = 2,251,864.88/1,606.13
6. Step 6: Final answer
   x = 1,402.05