Finding the Fourth Proportional to 1,087.74, 1,499.76 and 822.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087.74 : 1,499.76 = 822.47 : x
2. Step 2: Convert to fraction form
   1,087.74/1,499.76 = 822.47/x
3. Step 3: Cross multiply
   1,087.74x = 1,499.76 × 822.47
4. Step 4: Simplify right side
   1,087.74x = 1,233,500.11
5. Step 5: Solve for x
   x = 1,233,500.11/1,087.74
6. Step 6: Final answer
   x = 1,134.00