Finding the Fourth Proportional to 1,131.12, 1,562.76 and 1,076.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.12 : 1,562.76 = 1,076.58 : x
2. Step 2: Convert to fraction form
   1,131.12/1,562.76 = 1,076.58/x
3. Step 3: Cross multiply
   1,131.12x = 1,562.76 × 1,076.58
4. Step 4: Simplify right side
   1,131.12x = 1,682,436.16
5. Step 5: Solve for x
   x = 1,682,436.16/1,131.12
6. Step 6: Final answer
   x = 1,487.41