Finding the Fourth Proportional to 2,042.55, 3,063.32 and 871.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.55 : 3,063.32 = 871.98 : x
2. Step 2: Convert to fraction form
   2,042.55/3,063.32 = 871.98/x
3. Step 3: Cross multiply
   2,042.55x = 3,063.32 × 871.98
4. Step 4: Simplify right side
   2,042.55x = 2,671,153.77
5. Step 5: Solve for x
   x = 2,671,153.77/2,042.55
6. Step 6: Final answer
   x = 1,307.75