Finding the Fourth Proportional to 1,412.00, 2,116.73 and 718.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.00 : 2,116.73 = 718.28 : x
2. Step 2: Convert to fraction form
   1,412.00/2,116.73 = 718.28/x
3. Step 3: Cross multiply
   1,412.00x = 2,116.73 × 718.28
4. Step 4: Simplify right side
   1,412.00x = 1,520,396.04
5. Step 5: Solve for x
   x = 1,520,396.04/1,412.00
6. Step 6: Final answer
   x = 1,076.77