Finding the Fourth Proportional to 1,141.72, 1,575.84 and 676.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.72 : 1,575.84 = 676.04 : x
2. Step 2: Convert to fraction form
   1,141.72/1,575.84 = 676.04/x
3. Step 3: Cross multiply
   1,141.72x = 1,575.84 × 676.04
4. Step 4: Simplify right side
   1,141.72x = 1,065,330.87
5. Step 5: Solve for x
   x = 1,065,330.87/1,141.72
6. Step 6: Final answer
   x = 933.09