Finding the Fourth Proportional to 1,068.75, 1,476.09 and 718.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.75 : 1,476.09 = 718.83 : x
2. Step 2: Convert to fraction form
   1,068.75/1,476.09 = 718.83/x
3. Step 3: Cross multiply
   1,068.75x = 1,476.09 × 718.83
4. Step 4: Simplify right side
   1,068.75x = 1,061,057.77
5. Step 5: Solve for x
   x = 1,061,057.77/1,068.75
6. Step 6: Final answer
   x = 992.80