Finding the Fourth Proportional to 1,407.42, 2,106.54 and 944.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.42 : 2,106.54 = 944.10 : x
2. Step 2: Convert to fraction form
   1,407.42/2,106.54 = 944.10/x
3. Step 3: Cross multiply
   1,407.42x = 2,106.54 × 944.10
4. Step 4: Simplify right side
   1,407.42x = 1,988,784.41
5. Step 5: Solve for x
   x = 1,988,784.41/1,407.42
6. Step 6: Final answer
   x = 1,413.07