Finding the Fourth Proportional to 2,641.76, 3,645.36 and 1,522.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.76 : 3,645.36 = 1,522.61 : x
2. Step 2: Convert to fraction form
   2,641.76/3,645.36 = 1,522.61/x
3. Step 3: Cross multiply
   2,641.76x = 3,645.36 × 1,522.61
4. Step 4: Simplify right side
   2,641.76x = 5,550,461.59
5. Step 5: Solve for x
   x = 5,550,461.59/2,641.76
6. Step 6: Final answer
   x = 2,101.05