Finding the Fourth Proportional to 1,411.67, 1,961.54 and 1,396.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.67 : 1,961.54 = 1,396.46 : x
2. Step 2: Convert to fraction form
   1,411.67/1,961.54 = 1,396.46/x
3. Step 3: Cross multiply
   1,411.67x = 1,961.54 × 1,396.46
4. Step 4: Simplify right side
   1,411.67x = 2,739,212.15
5. Step 5: Solve for x
   x = 2,739,212.15/1,411.67
6. Step 6: Final answer
   x = 1,940.41