Finding the Fourth Proportional to 2,070.37, 2,869.42 and 2,031.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.37 : 2,869.42 = 2,031.49 : x
2. Step 2: Convert to fraction form
   2,070.37/2,869.42 = 2,031.49/x
3. Step 3: Cross multiply
   2,070.37x = 2,869.42 × 2,031.49
4. Step 4: Simplify right side
   2,070.37x = 5,829,198.04
5. Step 5: Solve for x
   x = 5,829,198.04/2,070.37
6. Step 6: Final answer
   x = 2,815.53