Finding the Fourth Proportional to 1,409.67, 1,944.15 and 1,056.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.67 : 1,944.15 = 1,056.42 : x
2. Step 2: Convert to fraction form
   1,409.67/1,944.15 = 1,056.42/x
3. Step 3: Cross multiply
   1,409.67x = 1,944.15 × 1,056.42
4. Step 4: Simplify right side
   1,409.67x = 2,053,829.22
5. Step 5: Solve for x
   x = 2,053,829.22/1,409.67
6. Step 6: Final answer
   x = 1,456.96