Finding the Fourth Proportional to 1,374.38, 1,894.83 and 1,187.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.38 : 1,894.83 = 1,187.48 : x
2. Step 2: Convert to fraction form
   1,374.38/1,894.83 = 1,187.48/x
3. Step 3: Cross multiply
   1,374.38x = 1,894.83 × 1,187.48
4. Step 4: Simplify right side
   1,374.38x = 2,250,072.73
5. Step 5: Solve for x
   x = 2,250,072.73/1,374.38
6. Step 6: Final answer
   x = 1,637.15