Finding the Fourth Proportional to 2,633.51, 3,637.98 and 2,105.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.51 : 3,637.98 = 2,105.90 : x
2. Step 2: Convert to fraction form
   2,633.51/3,637.98 = 2,105.90/x
3. Step 3: Cross multiply
   2,633.51x = 3,637.98 × 2,105.90
4. Step 4: Simplify right side
   2,633.51x = 7,661,217.53
5. Step 5: Solve for x
   x = 7,661,217.53/2,633.51
6. Step 6: Final answer
   x = 2,909.13