Finding the Fourth Proportional to 2,100.42, 3,169.61 and 2,084.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.42 : 3,169.61 = 2,084.22 : x
2. Step 2: Convert to fraction form
   2,100.42/3,169.61 = 2,084.22/x
3. Step 3: Cross multiply
   2,100.42x = 3,169.61 × 2,084.22
4. Step 4: Simplify right side
   2,100.42x = 6,606,154.13
5. Step 5: Solve for x
   x = 6,606,154.13/2,100.42
6. Step 6: Final answer
   x = 3,145.16