Finding the Fourth Proportional to 2,285.03, 3,427.72 and 986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.03 : 3,427.72 = 986.50 : x
2. Step 2: Convert to fraction form
   2,285.03/3,427.72 = 986.50/x
3. Step 3: Cross multiply
   2,285.03x = 3,427.72 × 986.50
4. Step 4: Simplify right side
   2,285.03x = 3,381,445.78
5. Step 5: Solve for x
   x = 3,381,445.78/2,285.03
6. Step 6: Final answer
   x = 1,479.83