Finding the Fourth Proportional to 1,871.62, 2,800.38 and 1,118.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.62 : 2,800.38 = 1,118.34 : x
2. Step 2: Convert to fraction form
   1,871.62/2,800.38 = 1,118.34/x
3. Step 3: Cross multiply
   1,871.62x = 2,800.38 × 1,118.34
4. Step 4: Simplify right side
   1,871.62x = 3,131,771.38
5. Step 5: Solve for x
   x = 3,131,771.38/1,871.62
6. Step 6: Final answer
   x = 1,673.29