Finding the Fourth Proportional to 3,513.42, 5,273.28 and 1,871.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.42 : 5,273.28 = 1,871.34 : x
2. Step 2: Convert to fraction form
   3,513.42/5,273.28 = 1,871.34/x
3. Step 3: Cross multiply
   3,513.42x = 5,273.28 × 1,871.34
4. Step 4: Simplify right side
   3,513.42x = 9,868,099.80
5. Step 5: Solve for x
   x = 9,868,099.80/3,513.42
6. Step 6: Final answer
   x = 2,808.69