Finding the Fourth Proportional to 2,342.38, 3,515.49 and 1,188.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,342.38 : 3,515.49 = 1,188.46 : x
2. Step 2: Convert to fraction form
   2,342.38/3,515.49 = 1,188.46/x
3. Step 3: Cross multiply
   2,342.38x = 3,515.49 × 1,188.46
4. Step 4: Simplify right side
   2,342.38x = 4,178,019.25
5. Step 5: Solve for x
   x = 4,178,019.25/2,342.38
6. Step 6: Final answer
   x = 1,783.66