Finding the Fourth Proportional to 1,747.78, 2,411.98 and 961.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,747.78 : 2,411.98 = 961.88 : x
2. Step 2: Convert to fraction form
   1,747.78/2,411.98 = 961.88/x
3. Step 3: Cross multiply
   1,747.78x = 2,411.98 × 961.88
4. Step 4: Simplify right side
   1,747.78x = 2,320,035.32
5. Step 5: Solve for x
   x = 2,320,035.32/1,747.78
6. Step 6: Final answer
   x = 1,327.42