Finding the Fourth Proportional to 2,810.05, 4,209.43 and 1,400.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.05 : 4,209.43 = 1,400.22 : x
2. Step 2: Convert to fraction form
   2,810.05/4,209.43 = 1,400.22/x
3. Step 3: Cross multiply
   2,810.05x = 4,209.43 × 1,400.22
4. Step 4: Simplify right side
   2,810.05x = 5,894,124.57
5. Step 5: Solve for x
   x = 5,894,124.57/2,810.05
6. Step 6: Final answer
   x = 2,097.52