Finding the Fourth Proportional to 1,531.89, 2,113.96 and 942.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.89 : 2,113.96 = 942.33 : x
2. Step 2: Convert to fraction form
   1,531.89/2,113.96 = 942.33/x
3. Step 3: Cross multiply
   1,531.89x = 2,113.96 × 942.33
4. Step 4: Simplify right side
   1,531.89x = 1,992,047.93
5. Step 5: Solve for x
   x = 1,992,047.93/1,531.89
6. Step 6: Final answer
   x = 1,300.39