Finding the Fourth Proportional to 2,651.76, 3,976.37 and 985.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,651.76 : 3,976.37 = 985.35 : x
2. Step 2: Convert to fraction form
   2,651.76/3,976.37 = 985.35/x
3. Step 3: Cross multiply
   2,651.76x = 3,976.37 × 985.35
4. Step 4: Simplify right side
   2,651.76x = 3,918,116.18
5. Step 5: Solve for x
   x = 3,918,116.18/2,651.76
6. Step 6: Final answer
   x = 1,477.55