Finding the Fourth Proportional to 2,137.89, 2,949.48 and 1,298.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.89 : 2,949.48 = 1,298.28 : x
2. Step 2: Convert to fraction form
   2,137.89/2,949.48 = 1,298.28/x
3. Step 3: Cross multiply
   2,137.89x = 2,949.48 × 1,298.28
4. Step 4: Simplify right side
   2,137.89x = 3,829,240.28
5. Step 5: Solve for x
   x = 3,829,240.28/2,137.89
6. Step 6: Final answer
   x = 1,791.13