Finding the Fourth Proportional to 1,562.69, 2,156.50 and 854.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.69 : 2,156.50 = 854.53 : x
2. Step 2: Convert to fraction form
   1,562.69/2,156.50 = 854.53/x
3. Step 3: Cross multiply
   1,562.69x = 2,156.50 × 854.53
4. Step 4: Simplify right side
   1,562.69x = 1,842,786.42
5. Step 5: Solve for x
   x = 1,842,786.42/1,562.69
6. Step 6: Final answer
   x = 1,179.24