Finding the Fourth Proportional to 1,277.05, 1,916.34 and 1,196.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277.05 : 1,916.34 = 1,196.07 : x
2. Step 2: Convert to fraction form
   1,277.05/1,916.34 = 1,196.07/x
3. Step 3: Cross multiply
   1,277.05x = 1,916.34 × 1,196.07
4. Step 4: Simplify right side
   1,277.05x = 2,292,076.78
5. Step 5: Solve for x
   x = 2,292,076.78/1,277.05
6. Step 6: Final answer
   x = 1,794.82