Finding the Fourth Proportional to 1,141.96, 1,704.68 and 976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.96 : 1,704.68 = 976.72 : x
2. Step 2: Convert to fraction form
   1,141.96/1,704.68 = 976.72/x
3. Step 3: Cross multiply
   1,141.96x = 1,704.68 × 976.72
4. Step 4: Simplify right side
   1,141.96x = 1,664,995.05
5. Step 5: Solve for x
   x = 1,664,995.05/1,141.96
6. Step 6: Final answer
   x = 1,458.02