Finding the Fourth Proportional to 2,123.07, 3,178.62 and 1,196.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.07 : 3,178.62 = 1,196.97 : x
2. Step 2: Convert to fraction form
   2,123.07/3,178.62 = 1,196.97/x
3. Step 3: Cross multiply
   2,123.07x = 3,178.62 × 1,196.97
4. Step 4: Simplify right side
   2,123.07x = 3,804,712.78
5. Step 5: Solve for x
   x = 3,804,712.78/2,123.07
6. Step 6: Final answer
   x = 1,792.08