Finding the Fourth Proportional to 2,209.10, 3,047.33 and 1,400.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.10 : 3,047.33 = 1,400.07 : x
2. Step 2: Convert to fraction form
   2,209.10/3,047.33 = 1,400.07/x
3. Step 3: Cross multiply
   2,209.10x = 3,047.33 × 1,400.07
4. Step 4: Simplify right side
   2,209.10x = 4,266,469.75
5. Step 5: Solve for x
   x = 4,266,469.75/2,209.10
6. Step 6: Final answer
   x = 1,931.32