Finding the Fourth Proportional to 1,814.64, 2,723.04 and 1,086.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.64 : 2,723.04 = 1,086.72 : x
2. Step 2: Convert to fraction form
   1,814.64/2,723.04 = 1,086.72/x
3. Step 3: Cross multiply
   1,814.64x = 2,723.04 × 1,086.72
4. Step 4: Simplify right side
   1,814.64x = 2,959,182.03
5. Step 5: Solve for x
   x = 2,959,182.03/1,814.64
6. Step 6: Final answer
   x = 1,630.73