Finding the Fourth Proportional to 1,472.18, 2,031.90 and 874.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.18 : 2,031.90 = 874.82 : x
2. Step 2: Convert to fraction form
   1,472.18/2,031.90 = 874.82/x
3. Step 3: Cross multiply
   1,472.18x = 2,031.90 × 874.82
4. Step 4: Simplify right side
   1,472.18x = 1,777,546.76
5. Step 5: Solve for x
   x = 1,777,546.76/1,472.18
6. Step 6: Final answer
   x = 1,207.42