Finding the Fourth Proportional to 1,297.94, 1,938.86 and 1,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297.94 : 1,938.86 = 1,167.72 : x
2. Step 2: Convert to fraction form
   1,297.94/1,938.86 = 1,167.72/x
3. Step 3: Cross multiply
   1,297.94x = 1,938.86 × 1,167.72
4. Step 4: Simplify right side
   1,297.94x = 2,264,039.76
5. Step 5: Solve for x
   x = 2,264,039.76/1,297.94
6. Step 6: Final answer
   x = 1,744.34