Finding the Fourth Proportional to 1,086.67, 1,498.04 and 775.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.67 : 1,498.04 = 775.63 : x
2. Step 2: Convert to fraction form
   1,086.67/1,498.04 = 775.63/x
3. Step 3: Cross multiply
   1,086.67x = 1,498.04 × 775.63
4. Step 4: Simplify right side
   1,086.67x = 1,161,924.77
5. Step 5: Solve for x
   x = 1,161,924.77/1,086.67
6. Step 6: Final answer
   x = 1,069.25