Finding the Fourth Proportional to 2,637.91, 3,948.28 and 1,944.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.91 : 3,948.28 = 1,944.30 : x
2. Step 2: Convert to fraction form
   2,637.91/3,948.28 = 1,944.30/x
3. Step 3: Cross multiply
   2,637.91x = 3,948.28 × 1,944.30
4. Step 4: Simplify right side
   2,637.91x = 7,676,640.80
5. Step 5: Solve for x
   x = 7,676,640.80/2,637.91
6. Step 6: Final answer
   x = 2,910.12