Finding the Fourth Proportional to 1,427.33, 2,139.29 and 734.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.33 : 2,139.29 = 734.33 : x
2. Step 2: Convert to fraction form
   1,427.33/2,139.29 = 734.33/x
3. Step 3: Cross multiply
   1,427.33x = 2,139.29 × 734.33
4. Step 4: Simplify right side
   1,427.33x = 1,570,944.83
5. Step 5: Solve for x
   x = 1,570,944.83/1,427.33
6. Step 6: Final answer
   x = 1,100.62