Finding the Fourth Proportional to 2,031.47, 3,051.31 and 1,211.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.47 : 3,051.31 = 1,211.35 : x
2. Step 2: Convert to fraction form
   2,031.47/3,051.31 = 1,211.35/x
3. Step 3: Cross multiply
   2,031.47x = 3,051.31 × 1,211.35
4. Step 4: Simplify right side
   2,031.47x = 3,696,198.31
5. Step 5: Solve for x
   x = 3,696,198.31/2,031.47
6. Step 6: Final answer
   x = 1,819.47