Finding the Fourth Proportional to 2,648.30, 3,650.28 and 1,901.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.30 : 3,650.28 = 1,901.10 : x
2. Step 2: Convert to fraction form
   2,648.30/3,650.28 = 1,901.10/x
3. Step 3: Cross multiply
   2,648.30x = 3,650.28 × 1,901.10
4. Step 4: Simplify right side
   2,648.30x = 6,939,547.31
5. Step 5: Solve for x
   x = 6,939,547.31/2,648.30
6. Step 6: Final answer
   x = 2,620.38