Finding the Fourth Proportional to 2,031.55, 2,802.97 and 1,285.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.55 : 2,802.97 = 1,285.82 : x
2. Step 2: Convert to fraction form
   2,031.55/2,802.97 = 1,285.82/x
3. Step 3: Cross multiply
   2,031.55x = 2,802.97 × 1,285.82
4. Step 4: Simplify right side
   2,031.55x = 3,604,128.76
5. Step 5: Solve for x
   x = 3,604,128.76/2,031.55
6. Step 6: Final answer
   x = 1,774.08