Finding the Fourth Proportional to 1,407.96, 1,944.71 and 1,055.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.96 : 1,944.71 = 1,055.46 : x
2. Step 2: Convert to fraction form
   1,407.96/1,944.71 = 1,055.46/x
3. Step 3: Cross multiply
   1,407.96x = 1,944.71 × 1,055.46
4. Step 4: Simplify right side
   1,407.96x = 2,052,563.62
5. Step 5: Solve for x
   x = 2,052,563.62/1,407.96
6. Step 6: Final answer
   x = 1,457.83