Finding the Fourth Proportional to 2,642.95, 3,645.73 and 1,635.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.95 : 3,645.73 = 1,635.05 : x
2. Step 2: Convert to fraction form
   2,642.95/3,645.73 = 1,635.05/x
3. Step 3: Cross multiply
   2,642.95x = 3,645.73 × 1,635.05
4. Step 4: Simplify right side
   2,642.95x = 5,960,961.99
5. Step 5: Solve for x
   x = 5,960,961.99/2,642.95
6. Step 6: Final answer
   x = 2,255.42