Finding the Fourth Proportional to 1,571.84, 2,168.56 and 942.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.84 : 2,168.56 = 942.38 : x
2. Step 2: Convert to fraction form
   1,571.84/2,168.56 = 942.38/x
3. Step 3: Cross multiply
   1,571.84x = 2,168.56 × 942.38
4. Step 4: Simplify right side
   1,571.84x = 2,043,607.57
5. Step 5: Solve for x
   x = 2,043,607.57/1,571.84
6. Step 6: Final answer
   x = 1,300.14