Finding the Fourth Proportional to 2,645.30, 3,650.40 and 1,526.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.30 : 3,650.40 = 1,526.28 : x
2. Step 2: Convert to fraction form
   2,645.30/3,650.40 = 1,526.28/x
3. Step 3: Cross multiply
   2,645.30x = 3,650.40 × 1,526.28
4. Step 4: Simplify right side
   2,645.30x = 5,571,532.51
5. Step 5: Solve for x
   x = 5,571,532.51/2,645.30
6. Step 6: Final answer
   x = 2,106.20