Finding the Fourth Proportional to 2,081.60, 3,126.72 and 1,651.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.60 : 3,126.72 = 1,651.76 : x
2. Step 2: Convert to fraction form
   2,081.60/3,126.72 = 1,651.76/x
3. Step 3: Cross multiply
   2,081.60x = 3,126.72 × 1,651.76
4. Step 4: Simplify right side
   2,081.60x = 5,164,591.03
5. Step 5: Solve for x
   x = 5,164,591.03/2,081.60
6. Step 6: Final answer
   x = 2,481.07