Finding the Fourth Proportional to 1,935.98, 2,672.07 and 1,272.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.98 : 2,672.07 = 1,272.89 : x
2. Step 2: Convert to fraction form
   1,935.98/2,672.07 = 1,272.89/x
3. Step 3: Cross multiply
   1,935.98x = 2,672.07 × 1,272.89
4. Step 4: Simplify right side
   1,935.98x = 3,401,260.25
5. Step 5: Solve for x
   x = 3,401,260.25/1,935.98
6. Step 6: Final answer
   x = 1,756.87