Finding the Fourth Proportional to 2,641.99, 3,646.03 and 1,579.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.99 : 3,646.03 = 1,579.72 : x
2. Step 2: Convert to fraction form
   2,641.99/3,646.03 = 1,579.72/x
3. Step 3: Cross multiply
   2,641.99x = 3,646.03 × 1,579.72
4. Step 4: Simplify right side
   2,641.99x = 5,759,688.28
5. Step 5: Solve for x
   x = 5,759,688.28/2,641.99
6. Step 6: Final answer
   x = 2,180.06