Finding the Fourth Proportional to 941.72, 1,411.34 and 826.70

Step by Step Solution

1. Step 1: Write the proportion equation
   941.72 : 1,411.34 = 826.70 : x
2. Step 2: Convert to fraction form
   941.72/1,411.34 = 826.70/x
3. Step 3: Cross multiply
   941.72x = 1,411.34 × 826.70
4. Step 4: Simplify right side
   941.72x = 1,166,754.78
5. Step 5: Solve for x
   x = 1,166,754.78/941.72
6. Step 6: Final answer
   x = 1,238.96