Finding the Fourth Proportional to 3,673.80, 5,069.82 and 2,101.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,673.80 : 5,069.82 = 2,101.86 : x
2. Step 2: Convert to fraction form
   3,673.80/5,069.82 = 2,101.86/x
3. Step 3: Cross multiply
   3,673.80x = 5,069.82 × 2,101.86
4. Step 4: Simplify right side
   3,673.80x = 10,656,051.87
5. Step 5: Solve for x
   x = 10,656,051.87/3,673.80
6. Step 6: Final answer
   x = 2,900.55